User's Manual

Host Unit Overview
Page 14 FlexWave Prism Element Management System 7.1 User Manual
©
2011 ADC Telecommunications, Inc ADCP-77-177 • Issue 1 • July 2011
Host System II Module
The Host System II Module:
• provides output dry alarm contacts for reporting alarms to an external
management system
• can output the reference clock to a daisy-chained Host.
Host System II Module Ports and Connectors
Ref # Component Device Function
1 REF IN connector QMA-Type female RF coaxial connector 10 MHz reference clock input that may be used to
synchronize between multiple Hosts in a
daisy-chain configuration.
2 REF OUT connector QMA-Type female RF coaxial connector 10 MHz reference clock output that may be used to
synchronize between multiple Hosts in a
daisy-chain configuration.
3 COM LINK connector DB9 female connector Not applicable to the Prism Host. The COM Link is
only used when the System II Board is configured
as a Remote System II Board.
4 Alarm Outputs—PRU Twelve position terminal block.
Screw-type terminal connector 
(14–26 AWG)
Connection points for a major and minor dry alarm
contacts. Includes normally closed (NC), common
(COM), and normally open (NO) wiring
connections.
5
Alarm Outputs—Host
6
Alarm Inputs
Two contact closure inputs Connection points for monitoring external devices,
which allows the Alarm connector to monitor the
output contact closures from an Uninterruptible
Power Supply (UPS) or a Bi-Directional Amplifier
(BDA). This feature is currently not supported by
Prism systems.
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