User's Manual

Table Of Contents
6-30 InterReach Unison Accel Installation, Operation, and Reference Manual PN 9000-10
620021-0 Rev. A
6.6.1 Alarm Source
Unison always acts an alarm source, no matter what type of equipment you are con-
necting to. Refer to Section 6.6.2 on page 6-33 if you want Unison Accel to sense
LGCell contact closures or other external alarms.
Using MetroReach Focus to Monitor Unison Accel
When you connect MetroReach Focus to Unison Accel, the Unison Accel Hub is the
output of the alarms (alarm source) and Focus is the input (alarm sense), as shown in
the following figure. Focus supports only faults (major errors).
Figure 6-7 Connecting MetroReach to Unison Accel
RF OUT
DOWNLINK
RF IN
UPLINK
FIBER
UPLINK
DOWNLINK
ALARM
RS-232C
MetroReach
Focus
RFM
Alarm
Sense
Alarm
Source
Alarm
Source
5-port Alarm Daisy-Chain Cable
May need
9-pin Adapter,
which ships
with the cable
Unison Accel Hub