User's Manual

Table Of Contents
1027144–0001 Revision D
Installing indoor RT equipment 3–31
RT installation
Line status LEDs
Included on: Quad–DS1 and Universal DS–1 SSIs
T0009037
PORT 1 PORT 2 PORT 3 PORT 4
PORT 1 PO
Both LEDs off:
Port in service -
no alarms present
()
: Port in service - yellow alarm or
test condition present
Yellow
On
()
: Port in service - red alarm
(Loss of signal or loss of frame)
Red
On