User's Manual

Corning Optical Communications User Manual
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CMA-601-AEN
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Page 15
LED Status Description
RUN Blinking green Normal status, power on
Off Alarm status
ALM Steady red General alarm
Blinking red (two second blinking) Synchronization alarm
Blinking red (one second blinking) Optical attenuation alarm
Off Normal status
COMM. Blinking green — blinks on each command
received by the GX
Normal communication
Off Communication fault
GX Dual-Band LED Description | Table 1.2
1.5 IFB Interfaces
The IFB is a combiner/splitter interface box which supports
connections to two HEUs, combines the RF services, and routes
them through optical central hub (OCH) modules (two per
service group) towards the GX remotes. All interfaces are on the
front panel.
IFB Interfaces | Figure 1.8
Interface Description
SGroup Input 1/2/3 12 QMA input ports (six UL and six DL) — used for IFB connections to two HEUs;
HEU1 and HEU2 input connections for three service groups
SGroup Output 1/2/3 12 QMA output ports (six UL and six DL) — used for IFB connections to OCHs;
connections to two OCH optical modules per service group
10 MHz Input One QMA input port — 10 MHz reference signal
Main Power DC input – two pin plug; power input — -40 to -48 VDC