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Teklogix 7035, 8255 & 8260 Terminals User Manual
B-1
A
PPENDIX
B
B
P
ORT
P
INOUTS
A
ND
C
ABLE
D
IAGRAMS
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
Sw7.4V battery power.
16
P7_2V
Sw7.4V battery power.
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