User's Manual

P32 Modem Port
Modem port P32 is a RS-232 port with V.24 interface used for remote
control of the repeater.
The connector is found on the DIA board to the left in the cabinet (see
Figure 3-7).
P32 is a 9 pole D-sub male connector.
P32 modem connector pinning
Pin 1 DCD
Pin 2 RXD
Pin 3 TXD
Pin 4 DTR
Pin 5 GND
Pin 6 DSR
Pin 7 RTS
Pin 8 RFS
Pin 9 RI
P33 Alarm Port
Alarm port P33 is used for external alarm sensors and alarm equipment.
The connector is found on the DIA board to the left in the cabinet (see
Figure 3-7).
P33 is a 15 pole D-sub female connector.
The port has four alarm inputs, EAL1 - EAL4, and two alarm outputs.
Four alarm inputs
The inputs are low-level inputs (signal AI1 - AI4) with common ground
(AIC).
Use insulated switch or relay to initiate alarms (open switches in normal
operating mode, closed switches cause alarm).
The alarm switch connection can be toggled between being active open or
active closed. See the Alarm Configuration section in Chapter 11.
The alarm input voltage ratings, related to ground (AIC), are:
Vin
max
= 5.5V
Vin
min
= –0.5V
The alarm inputs are defined as follows:
Pin 14 AI1 External alarm input 1 - EAL1
Pin 15 AI2 External alarm input 2 - EAL2
Pin 7 AI3 External alarm input 3 - EAL3
Pin 8 AI4 External alarm input 4 - EAL4
Pin 6 AIC Ground
6
5
9
1
15
8
1
9
ALLGON System AB AR Repeaters & OMT32 Hardware – Installation
User’s Manual VD202 90/EN Rev. 1A 1999-07 3 - 11