Description:
The T400 DDST III LOCAL POWER DIGITAL DATA STATION TERMINATION W/LOCAL POWER unit is an auto-rate adaptive digital network
interface located at the customer premises point-ofdemarcation.
It primarily functions as a regenerative
loopback device supporting telco-generated testing. A
switch-selectable regeneration capability accomodates
45 dB loop-loss deployment to customer equipment
designed to meet the -34 dB receiver sensitivity
requirement of applicable industry standards. The DDST
III interfaces with an OCU, OCU DP, or digital data
service (DDS) repeater from the network interface, and
a DSU/CSU from the customer interface of the unit.
Manufactured by: ADTRAN
Model/Part : 1212021L1
Product Type: Expansion module
Form Factor: Plug-in module
T400 form factor
All subrates, 19.2, 38.4, and 56 kbps loop rates, including Secondary Channel and 64 kbps Clear Channel capability
Adapts automatically to loop rate
Powered by -48 VDC supplied by mounting assembly (local power)
Manual and remote latching loopback
Optional CSU loopback response, sealing current detection, and line build-out
Extended loop option
Compatible Slots: 1 x expansion slot
CABLES
NETWORKING
• 3COM NETWORKING
