User's Manual

D-MBR 3707-3708 PS NFPA CLASS B SIGNAL BOOSTER
PRODUCT DESCRIPTION AND USER’S MANUAL
www.cobham.com/wireless Cobham Wireless – Coverage
Date: 6-Set-15
Page | 26 Doc. No. 00060CDUM Rev. 1.0
3.8.2 Booster Alarm Connector Pinout
Each alarm status is recognized by a separate wire-pair, where the colored wires are internally
connected with a 4.7 K ohm resistor (serves as a pull up resistor to +5V. The following figure shows
the Alarm connector pinout.
NOTE: The two external alarms can be used to connect dry-contacts BAT LOW and AC Input Fail
from either the UPS or Battery Charger. It is required to configure connected external alarms
according to section 5.5
Figure 3-17. D-MBR Alarm Connector Pinout
Pin No. Signal Name Wire Colour
1 External Alarm #1 Black
2 External Alarm #2 Red
3 Dry Contact VSWR Alarm (Normally Closed)* White
4 Dry Contact Summary Alarm (Normally Closed)**
Triggered under one of the following conditions:
• PA current from FF
• Temperature High or Built-In-Test
• Power failure
Green
5 GND for External Alarm Orange
6 Dry Contact VSWR Alarm (Normally Closed)* Blue
7 Dry Contact Summary Alarm (Normally Closed)** Brown
*Dry Contact VSWR alarm connection is supported by a pair of wires (3,6). Also, Pins 3,6 can indicate Power Up
for approximately 1 minute when system is powered up by closing contacts 3,6.** Dry Contact Summary alarm
connection is supported by a pair of wires (4,7)