P
AGE
20
46112/113-0299 <90-00032>
N
OTE
:
When the unit initially powers
up, the TX REPEAT LED blinks
on and off at a one second inter-
val if you set any 46113 Synch-
Master Module switches incor-
rectly. If this happens, recheck
the 46113 SynchMaster Module
switch settings.
OPERATION
O
peration of the 46112 and 46113 SynchMaster Modules
consists of observing the front panel LEDs. Refer to Figs. 11
and 12.
46112 Status indicating LEDs
The 46112 SynchMaster Module’s green status indicating LEDs
are designated as follows:
¨
RX SYNC
The RX SYNC LED lights up when the
46112 SynchMaster Module receives frame information
properly.
¨
TX INSERT
When data is transmitted to a port config-
ured for the 46112 SynchMaster Module, the TX INSERT
LED will light.
¨
TX REPEAT
When lit, the TX REPEAT LED indicates
that data is not being transmitted at the site. Either the TX
REPEAT or the TX INSERT will be on alternatively.
46113 Status indicating LEDs
There are two sets of four green front panel LEDs.
The top four LEDs are labeled TXD (ports A to D) and light up
when the port (A, B, C or D) drop side equipment transmits data
through the 46113 SynchMaster Module.
The bottom four LEDs are labeled RXD (ports A to D) and light
up when the port (A, B, C or D) receives data from a remote
46113 SynchMaster Module and transmits the data to the drop
equipment.
F
IG
. 11 - F
RONT
P
ANEL
, 46112
F
IG
. 12 - F
RONT
P
ANEL
, 46113
A11-46112-00 REV__
46112-00
SynchMaster
DATA
CONTROLLER
RX SYNC
TX REPEAT
TX INSERT
46113-00
SynchMaster
DATA PORT
A11-46113-00
TXD B
TXD A
TXD D
TXD C
RXD B
RXD A
RXD D
RXD C
