KWM Operations Manual Supplements the KPC-3 and KPC-9612 ÒGetting StartedÓ and ÒReferenceÓ Manuals and their addenda for use with the KWM-1200 and KWM-9612 Kantronics Co., Inc. 1202 E. 23rd Street, Lawrence, Kansas 66046-5099 For Product Information (913) 842-7745ÊFAX (913) 842-2031 Service/Technical Support (913) 842-4476ÊFAX number (913) 842-2021 ÊÊÊ9 am - noon, 2 pm - 5 pm Central time, Monday - Friday BBS number (913) 842-4678 ÊÊÊ300 - 28,800 (MNP, V.32bis, V.34) N,8,1 Ê24 Hour Operation e-mail: kansales@kantronics.com service@kantronics.com Printed in the U.S.A. Copyright 1995 by Kantronics Co., Inc. All rights reserved. Contents of this publication or the firmware described herein may not be reproduced in any form without the written permission of the copyright owner. Table of Contents Introduction 1 Setting up the TNC 1 Bench Test Set-up 1 Protocol Descriptions and Operation 2 Transparent-Unproto-Packet (TUP) Mode 2 TUP Mode Protocol Description 2 TUP Mode Operation 3 Commands Used 3 Entering TUP Mode 4 Exiting TUP Mode 4 Poll Mode 4 Poll Mode Protocol Description 4 Poll Mode Operation 4 Commands Used 5 Control Site .5 Remote Site 5 Suggested Settings 6 Entering POLL Mode 7 Exiting POLL Mode 7 Line Substitution (LSUB) Mode 7 LSUB Mode Protocol Description 7 LSUB Mode Operation 7 Commands Used 8 Entering LSUB Mode 8 Exiting LSUB Mode 8 Modem Mode 8 Modem Mode Protocol Description 8 Modem Mode Operation 9 Commands Used 9 Entering MODEM Mode 9 Exiting MODEM Mode 9 KWM Commands 10 Added Commands 10 Modified Commands 11 This supplement is intended to be used in conjunction with the KPC-series Getting Started and Reference manuals and their addenda. The ÒKWMCommandsÓ section of this supplement contains commands which have been modified from or added to those in the KPC-series manuals and their addenda for use with the KWM-series units. Introduction The KWM-series of radio modems contains the AX.25 protocol found in the KPC-series modems plus four protocols that have the potential to be easily integrated into a variety of commercial applications. AX.25 protocol operation is described in the KPC-series manuals which contain the AX.25 commands used in Kantronics TNCs (see Reference Manual and addenda) as well as cabling instructions and other information. Although AX.25 packet is a very robust protocol and assures an error-free exchange of data between Data Terminal Equipment (DTE) devices, it is somewhat cumbersome to implement. AX.25 requires that the user learn a highly-structured command set and the myriad of responses that can be received from the modem. Often, a long process of trial and error results in the realization that AX.25 may not be the most suitable protocol to use for a particular application. Kantronics has developed the Transparent Unproto Packet (TUP) Mode, Poll Mode, Line Substitution (LSUB) Mode, and Modem Mode protocols for the KWM-series in an effort to allow the modems to be more easily used with different types of installations. This manual supplement contains a detailed description of these protocols and their operation. Setting up the TNC Follow the instructions in the KPC-series manual to properly power and cable the modem to your computer. How to install an address (callsign) and set the serial port baud rate for communications between your computer and the modem is explained in the ÒGetting StartedÓ section. The exercise of connecting to your personal mailbox will assure you that the computer is properly communicating and the modem is properly responding to command input. Bench Test Set-up The ideal bench set-up for testing the suitability of the operational characteristics of the selected modem protocol for an application is a pair of computer/modem ÒstationsÓ with the modems cabled back-to-back. To set up the back-to-back Òstations,Ó connect the transmit audio of the first modem to the receive audio of the second modem and then connect the transmit audio from the second modem to the receive audio of the first. A common ground connection is also necessary to provide a return path for the audio signals. This allows the modems to communicate with each other using the Òwire radioÓjust described. It may be necessary to increase the transmit audio (AFSK output level) as described in the reference manual. Also, since the modem does not have to compensate for radio receiver roll-off, the equalization jumper may have to be moved to the Òno equalizationÓ setting. This preliminary step allows experimentation with the modems and the different protocol delays, responses and characteristics without having to be concerned with an actual radio link. After the proper protocol has been selected for a particular application, and has been demonstrated to work properly, the radios can be integrated into the test set-up. (See KPC-series manual for cabling information.) If problems appear at this stage, the radio link is probably at fault. The addition of the radio link will also add a significant amount of time to the data transfer because of transmitter key-up and return to receive delays which may require modification of initial parameter settings. Be sure that the application can tolerate the additional time that is required for the radio link! Protocol Descriptions and Operation Transparent Unproto Packet (TUP) Mode TUP Mode Protocol Description The TUP mode protocol utilizes the Unproto mode of the AX.25 protocol, allowing digipeaters (VIA path specified with UNPROTO command) to be used in order to effectively extend the range of a radio data system beyond simplex distance. This protocol uses the standard AX.25 CRC-16 error-checking to provide a high degree of data integrity. Data is sent and received in a totally transparent fashion, allowing all ASCII characters to be utilized (hex 00 through hex FF). Radio transmission is based on the PACTIME AFTER parameter setting of the modem, the setting of the carrier detect method, and the settings of the slot and persist channel access algorithm. Any data that is received by the modem via the radio is output to the serial port only if it contains no detectable errors. The received data will be exactly the same as the data that was sent to the input serial port of the transmitting modem, without any address headers or added formatting of the data. The modem is capable of selectively filtering monitored data from or to different modem addresses using the BUDLIST and BUDCALL commands. If digipeaters must be used to extend the range of the system, the information frame sent by any modem in the system will be output to the serial ports of the receiving modems only once, regardless of how many times it was received correctly. Also, data sent by any modem will not be decoded by itself when the data is digipeated. The TUP mode protocol provides an automatic ÒTime to LiveÓ timer that inhibits any modem from transmitting or receiving additional data until sufficient time has expired to allow in-progress data to travel through all the digipeaters specified in the UNPROTO field of the originating modem. Since the time for a given packet to travel the entire UNPROTO path may vary due to the presence of other signals or noise, a new command called TUPTIME has been added to the modem in order to impose an additional delay time, if needed, during which each modem will be inhibited from decoding or transmitting new data. This setting can be determined experimentally. It is important to note that TUPTIME applies only to the receiving modems and should be set to the same value at all sites. It is the responsibility of the host system to insure that additional data is not transmitted until sufficient time has elapsed to allow data to travel to the last digipeater and the response, if any, to travel back to the host. Note that the automatic ÒTime to LiveÓ timer and the TUPTIME timer are only in effect if packets are being digipeated. TUP Mode Operation Special KWM-9612 notes: 1. To select the desired radio port for operation use the MAXUSERS command MAXUSERS 1/0 selects port 1 (1200 baud) MAXUSERS 0/1 selects port 2 (9600 baud) 2. Any change in parameters must be PERMed (see Commands section of this supplement) or it will not be maintained if the unit is powered off. Commands Used Basic TUP operation involves just a few commands: MYCALL Ð The MYCALL command determines the MODEM address. This must be entered after the autobaud routine has detected an asterisk (*). MODE Ð The MODE command format is [baudrate], [parity], [wordlen], [stopbits] EXAMPLE: cmd:MODE 9600,NONE,8,1 Set these parameters to match those of the attached computer or DTE. (NOTE: The MODE command replaces the ABAUD and PARITY commands described in the KPC-3 manual.) TXDELAY Ð The TXDELAY (TXD) command determines how long the modem will assert the Push-to-Talk line of the radio before sending data. This time will have to be determined experimentally since it will vary from radio to radio. If the TXD is set too short, the data transmitted will be garbled and not received by other units in the system. Setting TXD too long will reduce channel capacity. ***IMPORTANT*** Since TXD is used in the computation of the automatic timer used to inhibit transmission until a digipeated packet has had time to reach its destination, TXD must be set to the same value in all modems in the system. PACTIME Ð The PACTIME parameter determines how long the modem will wait after receiving data to be transmitted from the DTE before beginning the radio key-up sequence. Normally, this parameter should be set to AFTER 1 (100 ms.) in order to minimize Òdead-airÓ time on the system. PACLEN Ð PACLEN sets the size of the data packet(s). Most applications do not require large amounts of data to be transferred so the default value (128) will probably be satisfactory. Setting the PACLEN parameter to 0 causes the data portion of the packet to be elastic and allows the modem to send a single packet of data to the radio of any size between 1 and the maximum of 256 characters. If the amount of data to be sent exceeds the PACLEN parameter setting, the transmission will be composed of multiple packets containing the data. PERSIST and SLOTTIME Ð These parameters determine how aggressively the modem will attempt to access a multi-user channel based on carrier detect. See KPC-series manual for a full explanation of these parameters. Entering TUP Mode When you have made any desired changes from the default settings for the above parameters (and PERMed them if using the KWM-9612), use the INTFACE command to begin TUP operation. Set the INTFACE command to TUP: cmd:INTFACE TUP and power the unit off and then back on. Exiting TUP Mode If you want to exit TUP mode to Òfine tuneÓ parameter settings (or for any other reason), the Command mode of the modem can be regained by using the transparent data escape sequence, i.e., by sending a series of three control-Cs (unless a different control character for escape has been defined). (See TRANS command in the Reference manual). Poll Mode Poll Mode Protocol Description The POLL mode is generally used in system applications that implement a polled-response protocol between a central site (Control Site) and one or more remote locations (Remote Site). The POLL mode is similar to the TUP mode since it uses a data transparent broadcast mode and a packet protocol with CRC-16 error-checking to insure the integrity of the received data. All ASCII characters (hex 00 through FF) can be transmitted and received. The POLL mode differs from TUP mode by allowing an application program to address specific locations without changing any modem parameters. All data sent by the application program at the central site must begin with the address (POLLID) of the intended remote modem. When any remote modem receives data from the radio, the data is checked for errors and the received POLLID is compared with its own POLLID. If they match, the POLLID is stripped and the data that follows is sent to the serial port. If they do not match, the data that follows is discarded and nothing is output to the serial port. All data received by the central site from the remote location will arrive with the POLLID of the remote site automatically attached to the beginning of the data. It is the responsibility of the application program to: (1) address data to be sent to the remote sites, (2) determine if the data was received, and (3) recognize responses that contain the remote siteÕs POLLID and data. Digipeating is not allowed. Poll Mode Operation Special KWM-9612 notes: 1. To select the desired radio port for operation use the MAXUSERS command MAXUSERS 1/0 selects port 1 (1200 baud) MAXUSERS 0/1 selects port 2 (9600 baud) 2. Any change in parameters must be PERMed (see Commands section of this supplement) or it will not be maintained if the unit is powered off. Commands Used Each modem is set up differently depending upon whether it is to be a Control modem or a Remote modem. Control Site Control Site Configuration Ð The POLLID command in the Control modem must be set to 0000 and the INTFACE command must be set to POLL. (See ÒEntering POLL ModeÓ below.) Control Site Transmit Format Ð All data received by the Control modem via the RS-232 serial port must begin with a POLLID (four digit remote address between 0001 and 9999) and be followed immediately by the poll data. The data sent by the application to the Control modem must contain less than PACLEN bytes in order to assure addressing of the poll. If the poll data contains more characters than allowed by the setting of the PACLEN command, the data will be fragmented and multiple packets will be formed and transmitted by the modem. These additional packets will contain only the balance of the data received by the modem. Since these packets do not begin with a POLLID, they will be ignored by all Remote modems. Control Site Receive Format Ð All Remote transmissions received by the Control modem via the radio will consist of the Remote POLLID followed immediately by the Remote data. Remote Site Remote Site Configuration Ð The POLLID command in each of the Remote modems must be set to a different number between 0001 and 9999. This establishes a unique address for each Remote modem and is the only address that will allow data received via the radio to be passed to the serial port. The INTFACE command in each modem must be set to POLL. (See ÒEntering POLL ModeÓ below.) Remote Site Transmit Format Ð Remote sites generally do not have much computing capacity. Therefore, the transmitted format of the data is, of necessity, straightforward. All data received via the serial port will be formed into packets and transmitted with the address (POLLID) attached to the beginning of each data packet. Remote Site Receive Format Ð All data received by the Remote via the radio is first examined for errors using a CRC-16 error-checking algorithm. Data packets that contain errors are discarded. If the data contains no errors, it is then checked for a match of the received POLLID and its own POLLID. If there is not a match, the data that follows is discarded. If there is a match, the POLLID is stripped and the raw data is passed to the RS-232 serial port for processing. The received data format will be exactly the same as the data sent to the Control modem by the application program. The CONMODE command operates differently in Poll mode to allow the modem to use any of several methods to determine when to transmit data. If CONMODE is set to CONVERS (default), data will be transmitted when any of the following conditions is met: 1. The SENDPAC character is received by the modem. The default SENDPAC character is a carriage return and can be changed to suit an existing application. The SENDPAC character can be either stripped or appended to the data by setting the CR command ON to append, or OFF to strip. 2. PACLEN is exceeded. CAUTION: MASTER (Control Site) operation will be unusable if PACLEN is exceeded since each packet of data sent MUST begin with a Slave (Remote Site) POLLID (0001 - 9999). Remote transmissions may exceed the setting of PACLEN since each packet transmitted from the Remote will contain the proper POLLID. If fragmentation of data occurs, the application program is responsible for reconstructing the data. PACLEN determines the maximum size of the data packets (default 128 characters). Normally, the amount of data to be transmitted will be considerably less than this. Setting the PACLEN parameter to 0 causes the data portion of the packet to be elastic and allows the modem to send a single packet of data to the radio of any size between 1 and the maximum of 256 characters. 3. CPACTIME is on and PACTIME expires. If CPACTIME is ON, data will be periodically transmitted based on PACTIME timeout. If CONMODE is set to TRANS, data will be transmitted when: 1. PACLEN is exceeded, or 2. PACTIME expires. Suggested Settings Usually, the CONMODE command is set to TRANS and the PACTIME command is set to AFTER 1. The CONMODE TRANS command makes the modem data transparent to the Remote device. The PACTIME AFTER 1 command allows the modem to transmit the data received via the serial port with as little delay as possible. This speeds up the response time of the system by reducing Òdead-airÓ time. It is also recommended to set the PACLEN command to zero. This allows the modem to send a single packet of data to the radio of any size between 1 and the maximum of 256 characters. If the response data contains more characters than the PACLEN command allows, the data will be transmitted in multiple packets with the Remote POLLID automatically attached to the beginning of each data packet. In such a case, it is the responsibility of the Control Application Program to reassemble the data. CAUTION: Allowing the Control Site application to send more data than that permitted by the PACLEN command is the most common cause of failure using the POLL mode. BE ABSOLUTELY SURE THAT CONTROL SITE TRANSMISSIONS NEVER EXCEED THE PACLEN LIMIT! Entering POLL Mode When you have entered the POLLID of the unit and made any desired changes from the default settings in the parameters (and PERMed them if using the KWM-9612), use the INTFACE command to begin POLL operation. Set the INTFACE command to POLL: cmd:INTFACE POLL and power the unit off and then back on. Exiting POLL Mode If you want to exit POLL mode to Òfine tuneÓ parameter settings (or for any other reason), the Command mode of the modem can be regained as follows: If CONMODE = CONV Enter: 0000QUIT (NOTE: MUST BE UPPER CASE) If CONMODE = TRANS Use the transparent data escape sequence, i.e., send a series of three control-Cs (unless a different control character has been defined). (See TRANS command in the Reference manual). Line Substitution (LSUB) Mode LSUB Mode Protocol Description The LSUB mode of operation provides a method of transmitting and receiving raw ASCII data via a radio. Data is sent and received in a totally transparent fashion, allowing all ASCII characters to be utilized (hex 00 through hex FF). There is no addressing, error-detection or automatic retransmission of the data. When the receiving modem detects the proper Start-of-Data sequence generated by the transmitting modem, it will output the data that follows to its serial port. At the end of the received data there is an End-of-Data sequence that permits the receiving modem to recognize the end of the data and quit translating the receiver audio. This allows the modems to operate with open squelch audio from the radios. Since the protocol constitutes a very small portion of the transmission, the effective data throughput is very nearly that of the radio baud rate (HBAUD). LSUB Mode Operation Special KWM-9612 notes: 1. To select the desired radio port for operation use the MAXUSERS command MAXUSERS 1/0 selects port 1 (1200 baud) MAXUSERS 0/1 selects port 2 (9600 baud) 2. Any change in parameters must be PERMed (see Commands section of this supplement) or it will not be maintained if the unit is powered off. Commands Used TXDELAY Ð The TXDELAY (TXD) command determines how long the modem must key the Push-to-Talk line of the radio before sending data. This time will have to be determined experimentally since it will vary from radio to radio. If the TXD is set too short, the data transmitted will be garbled and not received by other units in the system. Setting TXD too long will reduce channel capacity. MODE Ð The MODE command format is [baudrate], [parity], [wordlen], [stopbits] EXAMPLE: cmd:MODE 9600,NONE,8,1 Set these parameters to match those of the attached computer or DTE. (NOTE: The MODE command replaces the ABAUD and PARITY commands described in the KPC-3 manual.) PACTIME Ð The PACTIME parameter determines how long the modem will wait after receiving data to be transmitted from the DTE before beginning the radio key-up sequence. Normally, this parameter should be set to AFTER 1 (100 ms.) in order to minimize Òdead-airÓ time on the system. PERSIST and SLOTTIME Ð These parameters determine how aggressively the modem will attempt to access a multi-user channel based on carrier detect. See KPC-series manual for a full explanation of these parameters. Entering LSUB Mode When you have made any desired changes from the default settings for the above parameters (and PERMed them if using the KWM-9612), use the INTFACE command to begin LSUB operation. Set the INTFACE command to LINESUB: cmd:INTFACE LINESUB and power the unit off and then back on. Be aware that there is no data flow control. Generally this is not a problem since 6 or 7K bytes are available to buffer the serial data. Exiting LSUB Mode If you want to exit LSUB mode to Òfine tuneÓ parameter settings (or for any other reason), the Command mode of the modem can be regained by using the transparent data escape sequence, i.e., by sending a series of three control-Cs (unless a different control character has been defined). (See TRANS command in the Reference manual). Modem Mode Modem Mode Protocol Description It is important to note that when the MODEM mode is used, the modem is acting as a pure modulator/demodulator and uses the RTS and CTS lines of the serial port to control transmission of the data. There is no addressing, error correction, error detection, or flow control of the data as it is transmitted or received. The audio tones generated and received by the modem will directly mimic the data in composition and speed. Because of this, it is essential that all Data Terminal Equipment (DTE) associated with this mode have identical serial port parameters in use. EXAMPLE: 1200 baud, No parity, 8 data bits, 1 stop bit Modem Mode Operation Special KWM-9612 notes: 1. Modem mode is not available on the 9600 baud port of the KWM-9612. 2. To select the desired radio port for operation use the MAXUSERS command MAXUSERS 1/0 selects port 1 (1200 baud) 3. Any change in parameters must be PERMed (see Commands section of this supplement) or it will not be maintained if the unit is powered off. Commands Used The TXDELAY (TXD) command sets the parameter to control the time necessary (in 10 ms steps) for the transmitter to be keyed prior to transmitting data tones. TXD is the only command in the manual that affects the MODEM mode of operation. This timing interval can be adjusted to suit a particular radio by changing the value of the TXD parameter. Entering MODEM Mode When you have set the TXD parameter as desired (and PERMed it if using the KWM-9612), use the INTFACE command to begin MODEM operation. Set the INTFACE command to MODEM: cmd:INT MODEM Power the unit should OFF and then back ON with RTS held low. The idle state of the CTS and RTS lines between the DTE and the modem is normally low (negative voltage). When the RTS line is asserted by the DTE, the modem will immediately key the transmitter, sending a ÒMark HoldÓ tone and return CTS to the DTE after the TXDELAY (TXD) time period has expired. The return of CTS indicates to the DTE that the radio is transmitting and that the modem is ready to accept data via the serial port at any speed up to 1200 baud. Releasing the RTS signal from the DTE to the modem will cause the modem to release the Push-To-Talk line to the radio and drop CTS to the DTE. Exiting MODEM Mode Since all data appearing on the serial input to the modem is regarded as data to be sent, the Command mode of the modem cannot be regained by using the transparent data escape sequence, i.e., by sending a series of three control-Cs as described in the TRANS command in the Reference manual. If you wish to exit MODEM mode to change the TXD parameter (or for any other reason), holding the RTS line high during power-up will restore the unit to the Command mode. KWM Commands The Commands section of this supplement contains only those commands which have been added or modified for use with the KWM-series modems. All other commands are found in the command section in the Reference manual or addenda to the manuals for the KPC-series modems. Added Commands l CONPerm ON|OFFÊÊ{OFF} CONPERM forces a packet connection on the present stream to be permanent. If ON is selected and the modem is powered off and then back on, it will attempt to re-establish the packet connection even if the other station is no longer available. EXAMPLE: cmd:connect xyz ***CONNECTED TO XYZ cmd:conperm on l PErm immediateÊÊ(KWM-9612 only) The PERM command causes any parameters changed since the last time the PERM command was used to be made Òpermanent.Ó They will not change if the unit is powered off and back on. To change PERMed commands, simply enter the new value for the command and PERM it by entering PERM at the cmd: prompt. If for any reason you want to return all parameters to factory defaults, use the RESTORE D command or perform a Hard Reset as described in the Reference manual. Either procedure will return all parameters to factory defaults. l POllid 0000 - 9999ÊÊ{0000} The four digit POLLID determines if the modem is a Control or a Remote modem. If the modem is a Remote, POLLID also sets the Remote address. If POLLID is equal to 0000, the modem is a Control Modem. If POLLID is 0001 to 9999, the modem is a Remote Modem. l TUptime nÊÊ(n = 0 - 255)ÊÊ{1} TUPTIME is used only in TUP mode and imposes an additional time to live (in 100 ms increments) for digipeated packets. Modified Commands l CONMode [CONVERS|TRANSPARENT]ÊÊ{CONVERS} When INTFACE is set to POLL this command allows data transmission to occur in accordance with parameters specified. See Poll Mode operations section of this supplement. l INtface TERMINAL|KISS|HOST|GPS|LINESUB|MODEM|TUP|POLLÊÊ{TERMINAL} The TUP, POLL, LINESUB (LSUB), and MODEM modes have been added to the INTFACE command. NEWUSER has been deleted from the KWM firmware. l MODe [b][,[p],[d],[s]]ÊÊ{0,N,8,1} (b = baud rate 0, 1200, 1800, 2400, 4800, 9600, 19200; p = parity EVEN, ODD, NONE; d = number of data bits 7, 8; s = number of stop bits 1, 2) The MODE command is used to set the serial port parameters of the KWM-1200 and KWM-9612 for communication with the attached terminal. The MODE command replaces the ABAUD and PARITY commands in the KPC-3 Reference manual. EXAMPLE: cmd:MODE 9600,NONE,8,1 When b is set to 0 (DEFAULT), the KWM-1200 or KWM-9612 will perform an autobaud routine when powered up. When * character is entered during the autobaud routine, the baudrate will be set to match the serial port baud rate set in the computer. To change the value of selected parameters in the string, you need not re-enter values for the whole string. Changing the value of a parameter in the string does not change the value of parameters after the changed parameter. To change the baud rate only, for example, enter the new baud rate. All other parameters will remain the same. To change other parameters without having to re-enter the values of preceding parameters, enter a comma in the sequence for each unchanged parameter. For example to change the number of data bits, enter cmd:MODE,,7 or enter all parameters with the new value for the parameter to be changed cmd:MODE 9600,N,7,1 December 21, 1995ÊÊÊKWM Operations Manual © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  December 21, 1995ÊÊÊKWM Operations Manual © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  KWM Operations ManualÊÊÊDecember 21, 1995 © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  December 21, 1995ÊÊÊKWM Operations Manual © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  KWM Operations ManualÊÊÊDecember 21, 1995 © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  December 21, 1995ÊÊÊKWM Operations Manual © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  KWM Operations ManualÊÊÊDecember 21, 1995 © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  December 21, 1995ÊÊÊKWM Operations Manual © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  KWM Operations ManualÊÊÊDecember 21, 1995 © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  December 21, 1995ÊÊÊKWM Operations Manual © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  KWM Operations ManualÊÊÊDecember 21, 1995 © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  December 21, 1995ÊÊÊKWM Operations Manual © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  KWM Operations ManualÊÊÊDecember 21, 1995 © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.  KWM Operations ManualÊÊÊDecember 21, 1995 © Copyright 1995, Kantronics Co., Inc. All Rights Reserved. Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.