Standard Ds3-Fed System Application; Sts-1 Interface; Usage; Sts-1 Cabling Specifications - ADTRAN MX2820 System Manual

Standard DS3-Fed System Application

USAGE

The standard STS-1-Fed application for the MX2820 system allows the STS-1 Multiplexer
(MUX) module to accept a single STS-1 input signal from the network and provide twenty-
eight T1 or twenty-one E1 output signals on the terminal (customer) side.
With a 1:1 redundant configuration, two STS-1 MUX modules can accept a single STS-1 signal
from the network. Each STS-1 MUX pair communicates with each other to share information
regarding provisioning and the presence of signals and trouble conditions. Each STS-1 MUX
will communicate with the MX2820 SCU (1186003L1) with regards to alarm reporting and
performance monitoring.
One STS-1 MUX module, slot A in the MX2820 shelf, is considered the primary (working) unit,
and the other STS-1 MUX module, slot B in the MX2820 shelf, is considered the protect
(standby) unit.

STS-1 Interface

The MX2820 backplane provides two standard BNC coax female connectors for the STS-1
MUX module, one for the STS-1 transmit path and the other for the STS-1 receive path.
The 19-inch shelf provides 14 BNC connectors, and the 23-inch shelf provides 18 BNC
connectors.

STS-1 Cabling Specifications

Refer to "Section 2, Engineering Guidelines"

DSX-1/E1 Interface

The MX2820 backplane provides two 60-pin FCI connectors for each DSX-1 signal, one for the
DSX-1/E1 transmit Tip and Ring pairs, and the other for the DSX-1/E1 Receive Tip and Ring
pairs.

DSX-1 Cabling Specifications

Refer to "Section 2, Engineering Guidelines"
61186003L1-1D
APP-302
for cable specifications.
for cable specifications.
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