User's Manual

Table Of Contents
Corning Restricted - Draft for public release
Physical Installation
CMA-XXX-AEN
Page 50
3.3.4 External Alarm Connections
The HX 2.5GHz TDD DB-9 “Ext. Alarm” connector supports up to four dry contact alarms for which the polarity field
(normally open/normally close circuit) and severity are configured via the Web management GUI (SC-450 v7.2 and
higher). Refer to Figure
3-21 and Table 3-5 for connector pin out and description.
HX 2.5GHz TDD External Alarm Connector Pin Out
Figure 3-22
Pin Description Wire Color
1 +48v Common Red
2 Not connected
3 Not connected
4 Not connected
5
Not connected
6
-48v_Alarm Door
Black
7 -48v_Alarm HEX Black
8 -48v_Alarm Future Black
9 -48v_Exist Indication Black
Table 3-5. External Alarm Connector Pin Out Description
3.3.5 Power Connections
WARNING! Before connecting or disconnecting ground or power wires to the chassis, ensure that power is
disconnected from the DC circuit. To disconnect power, locate the circuit breaker on the panel board that services the
DC circuit, and switch the circuit breaker to the OFF position. Verify zero voltage at the power terminals on the chassis
before proceeding.
DC power specifications
Power source rating: 34-48 V DC
Tolerance Voltage : 28-60 V DC
Max Consumption: SISO = 90 W(3A); MIMO = 150 W(5A)
Compatible wire size for plug: 30~12 AWG