Multiplexer Module; Figure 9. Oc-3 Mux Faceplate - ADTRAN Total Access 3000 System Manual

6TASYS101-1E
TOTAL ACCESS 3000/3010
SYS-101
Page 18 of 46
Other faceplate features include:
• Automatic Protection Switch (APS) push-button
• Test/Enable
4.2.3 OC-3 Multiplexer Module (P/N 1181031L1)
The Total Access 3000/3010 OC-3 Multiplexer transforms the Total Access 3000/3010
system into a SONET network element able to interface with industry standard
SONET equipment. The OC-3 module is a terminal mode SONET interface and
therefore deploys as a termination device subtending from a SONET ring. The first
STS-1 within the OC-3 is terminated on the shelf. The unit multiplexes and
demultiplexes the signal into 28 VT 1.5s. It provides full time slot assignment
capabilities, allowing any payload DS1 to be routed to any slot in the system. See
Figure 9.
The OC-3 module is capable of operating in a single or fully redundant configuration.
Full redundancy is achieved by configuring the modules in a protection-switching
mode in which the online MUX would transfer the payload to the off-line, or hot-
standby, MUX upon the detection of a fault condition. In normal operation, both
modules receive concurrent payloads from the network, while only the online module
transmits to the network. The "linked provisioning" option of the OC-3 module
ensures that both modules constantly have identical provisioning settings in the event
of a protection switch to the off-line module.
© 2003, ADTRAN, Inc.
OC-3MX
1181031L1
POWER
STATUS
OPTICS
TEST
CLOCK
LOCKOUT
ON LINE
APS
TEST/
ENABLE

Figure 9. OC-3 MUX Faceplate

Total Access ® 3000/3010 System Manual