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118 | en LTC 8600 | LTC 8800 Series
Bosch Security Systems, Inc. Instruction Manual F.01U.127.393 | 2.0 | 2009.03
• The LTC 8506/00 cable (used to connect the Allegiant's console port to an
external PC) uses the following pin-outs:
• For reference, a cable to connect the Allegiant's printer port to an external
serial printer would use the following pin-outs:
Code Port Pin-outs
Pin # Designation
1+DATA
2-DATA
3GND
4GND
5GND
6 NO CONNECTION
7 NO CONNECTION
812 VAC
912 VAC
COMM PORT 1 And COMM PORT 2
(Not Applicable To All Systems)
Pin # Designation
1 CHASSIS GND
2 +TXD
3 -TXD
4 +RXD
5 -RXD
6 GND
7 GND
8 GND
9 GND
9-Pin Male
(Console)
Allegiant Designation 9-Pin Female (PC Side)
1 Chassis GND None
2 Receive Data 3
3 Transmit Data 2
4 CTS 1
5 RTS 8
6 No Connection None
7 Data GND 5
8 No connection None
9 No connection None
(pins 4 & 6 jumpered)
(pins 1 & 7 jumpered)
9-Pin Male Printer
(Printer)
Allegiant Designation 25-Pin Female
(Printer Side)
1 Chassis GND 1
2 Receive Data 2
3 Transmit Data 3
4 CTS 4,8
5 RTS 5
6 No Connection None
7 Data GND 7
8 No connection None
9 No connection None
(pins 6 & 20 jumpered)