ADTRAN TRACER User Manual page 20

P 10
AGE
S 1
ECTION
The LEDs associated with the DS1/DSX-1 interfaces are listed
below. There are two sections of identical indicators -- one for
each DS1/DSX-1 interface.
BPV .............. Red if the incoming T1 stream contains bipolar
RED ............. Red if there is no signal present at the T1 interface
LPBK ............ Yellow if the T1 interface is in loopback
YEL/AIS ....... Flashes to indicate a T1 Yellow Alarm; remains On
The LEDs indicating error conditions are listed below.
RF Low ................ Red indicates the received RF carrier level is too
Link Down ........... Radio path is down
The front panel pushbutton controls are listed below.
Reset .................... Reset the system
LBKA ................... Toggles the T1-A between no loopback and line
LBKB .................... Toggles the T1-B between no loopback and line
Plan Sel ................ Toggles between frequency plans A and B (must
Remote Test ......... Initiate a remote test across the RF link
violations
(solid) to indicate an AIS alarm (when the DS1/DSX-1
is receiving a Blue code)
low
loopback
loopback
match frequency plan cabling on RFC). Refer to
"Setting the RFC Frequency Plan" in Section 2 of
this manual.
61280.003L1-1B
4/12/99