COMSPHERE 3550 Series Data Service Units

 

Table 1-2

DSU Technical Specifications

Specifications

Criteria

 

 

APPLICATION

Full- or half-duplex data transmission via point-to-point or multipoint

 

DDS network, or local area data channel

 

 

COMMUNICATION LINE

Leased or private 4-wire DDS line

 

 

DATA RATES

 

Digital Services (DDS, ASDS)

2.4, 4.8, 9.6, 19.2, 38.4, and 56 kbps

LADS

2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 kbps

When timing is external (provided by the

64 kbps " 11 bps

DTE), the DTE's clock must be within these

56 kbps " 9 bps

ranges.

38.4 kbps " 4 bps

 

19.2 kbps " 5 bps

 

9.6 kbps " 1 bps

 

4.8 kbps " 0 bps

 

2.4 kbps " 0 bps

 

 

DDS NETWORK INTERFACE

 

3550 DSU

8-pin modular jack, USOC RJ48S

3551 DSU

(One or two) 50-pin connector, USOC RJ48T

 

 

DIAGNOSTIC INTERFACE

 

3550 DSU

Requires 3600 Series Hubbing Device which provides

 

two 8-pin modular jacks

3551 DSU

Via the SDU in the COMSPHEREr 3000 Series Carrier

 

 

NETWORK COMPATIBILITY

 

AT&T Technical Reference 62310 ± 1987

2.4, 4.8, 9.6, and 56 kbps

Integrated Network Corporation

19.2 kbps loop at levels of +6, 0, or ±10 dBm

Compatibility Bulletin CB-INC-101, and

 

Pacific Bell publications

 

PUB L-780035-PB/NB and

 

PUB L-780036-PB/NB

 

 

 

DSU COMPATIBILITY

 

Primary Channel

All Paradyne digital products and other products that are compliant with

 

AT&T Technical Reference 62310 ± 1987

 

 

1-6

December 1996

3550-A2-GB20-20

Page 19
Image 19
Paradyne 3551 manual DSU Technical Specifications, Lads