Teklogix 7035, 8255 & 8260 Terminals User Manual B-1
APPENDIX B
B
PORT PINOUTS AND CABLE DIAGRAMS
B.1 7035 Peripheral Port I/O Connector (28-Pin PCR)
Function Pin Signal Name Description
Ground
1 GND Digital ground.
2 GND Digital ground.
Audio
3 MIC Microphone input.
4 LINE_OUT Line level audio output
Alarm 5 BEEP External beeper output.
EMI
Shield
6 SHIELD Digital ground.
Diagnos-
tic Mode
7 DIAG
Input. If grounded at power up, causes
terminal to enter diagnostic mode. Menu
allows flash-ROM upgrade and other test
modes.
Non-
Decoded
Scanner
8 SCNR_ENABLE
Output enable to initiate external scan
engine.
9 SCNR_ACK
Output scan acknowledge. Currently
drives decode LED on external scanner.
10 SCNR_TRIG Scanner trigger input.
11 SCNR_DATA Scanner undecoded serial data input.
12 SCNR_SOS Not used
Serial
Port 2
COM 2
13 SERIAL2_RXD Serial data input RS-232D.
14 SERIAL2_TXD Serial data output RS-232D.
Power
15 P7_2V Switched +7.4V battery power.
16 P7_2V Switched +7.4V battery power.
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