COBHAM OMU I User Manual

OPTICAL MASTER UNIT MARK I
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage Date: 4-Jan-18 www.cobham.com/wireless
Document number:A1829300UM Rev. 3.1
Page | 8
1.4.5 External Alarm and Battery Module
The external alarm and battery module performs
the following functions:
• Contains the rechargeable battery pack – allows the
modem to transmit an alarm in case input power loss
is detected. Switch for ON/OFF.
• Supports connections for four external alarms and one
alarm relay
• The relay can be configured to trigger on any number
of internal and external alarms. The maximum current
through the relay is 100mA.
Figure
1-10. External Alarm and
Battery Module
1.4.6 Modem Unit
Optional – if a modem is not available on the Control unit. For example, PSTN modems or wireless
modems with a form factor that prevents it from being integrated with the Control Module.
This module performs the following functions:
• Provides modem functionality if the required modem
is not available on the Control Module.
• The access to a PSTN modem is via an RJ11
connector on the font of the module.
Figure
1-11. Modem Unit
PWR
Battery
Power
On
Off
PWR

COBHAM OMU I Specifications

General

Brand	COBHAM
Model	OMU I
Category	Network Hardware
Language	English