Paradyne COMSPHERE
3610, Operator'S Manual

Page: 20 / 310

COMSPHERE 3600 Series Data Service Units
1-4 July 1999 3610-A2-GB91-90
Order the COMSPHERE 3600 Series Data Service
Units, Models 3610 and 3611, Dial Backup Module and
SNA Diagnostic Interface Options, Applications Guide if
the Dial Backup Module (DBM) or SNA Diagnostic
Interface options are part of your configuration.
Order the COMSPHERE 3600 Series Data Service
Units, Models 3610 and 3611, Time Division Multiplexer,
Multichannel Multipoint, and Digital Bridge Options,
Applications Guide if your application uses a TDM or
MCMP circuit card, or uses DBM-Vs, DBM-Ss, or
DBM-Ds. The SNA Diagnostic Interface option, as it
applies to these applications, is also covered in this
applications guide.
Feature Description
This section provides descriptions of how to use the
DSUs as local area data sets (LADS), DSU compatibility
with other equipment, the NMS interface, rate adaption,
available diagnostics, in-band secondary channel
transport, network control and tributary addressing, and
aggregate switching.
LADS Operation
The 3600 Series DSUs can be used as a local area data
set (LADS) to provide a point-to-point link between any
two data devices having like protocols.
Multipoint LADS can be achieved by using an extra
DSU with TDM that is configured as an extended or
central-site bridge. The digital bridge essentially
“bridges” multiple point-to-point LADS circuits into a
single front-end processor (FEP). Refer to the
COMSPHERE 3600 Series Data Service Units,
Models
3610 and 3611, Time Division Multiplexer,
Multichannel Multipoint, and Digital Bridge Options,
Applications Guide for more information.
The digital network interfaces connect to a 4-wire,
nonloaded metallic pair. Both point-to-point and bridged
LADS can operate at 2.4, 4.8, 9.6, 19.2, 38.4, 56, or
64 kbps full-duplex. Table 1-1 summarizes the distance
limitations governing use of the 3600 Series DSUs for
LADS operation.
For bridged LADS information, order the
COMSPHERE 3600 Series Data Service Units,
Models 3610 and 3611, Time Division Multiplexer,
Multichannel Multipoint, and Digital Bridge Options,
Applications Guide.
Table 1-1
LADS Connection Distances
Data Rate
Wire Gauge (AWG)
Data Rate
(kbps)
19 22 24 26
2.4 20.0 mi
(32.2 km)
16.6 mi
(26.7 km)
12.7 mi
(20.5 km)
9.4 mi
(15.1 km)
4.8 19.4 mi
(31.2 km)
12.7 mi
(20.5 km)
9.6 mi
(15.4 km)
7.1 mi
(11.5 km)
9.6 15.2 mi
(24.5 km)
9.7 mi
(15.6 km)
7.3 mi
(11.7 km)
5.6 mi
(9.0 km)
19.2
1
11.8 mi
(19.0 km)
7.5 mi
(12.1 km)
5.7 mi
(9.2 km)
4.2 mi
(6.8 km)
38.4 11.2 mi
(18.0 km)
6.5 mi
(10.5 km)
4.6 mi
(7.4 km)
3.2 mi
(5.1 km)
56 9.2 mi
(14.8 km)
5.4 mi
(8.7 km)
3.8 mi
(6.2 km)
2.8 mi
(4.5 km)
64 9.2 mi
(14.8 km)
5.4 mi
(8.7 km)
3.8 mi
(6.2 km)
2.8 mi
(4.5 km)
1
Power level is –10 dBm.