D-MBR 3707-3708 PS NFPA CLASS A SIGNAL BOOSTER
PRODUCT DESCRIPTION AND USER’S MANUAL
www.cobham.com/wireless
Date: 17-Jan-16
Cobham Wireless
–
Coverage
Page | 26
Rev. 1.1
Doc. No.00060CDUM
3.4.3.3 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: EXT Alarm IN 1 can be used to provide SNMP alarm notification for one of the dry-contact
alarms of the UPS or Battery Charger. This is done by connecting the dry-contact alarm output and
then configuring EXT Alarm IN 1 as Normal = High according to section
5.5
Figure 3-18. D-MBR Alarm Connector Pinout
Pin No.
Signal Name
Wire Colour
1
External Alarm #1
Black
2
N/A
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)