Dsu Dte Connection; Verification Testing - Paradyne COMSPHERE 3610 Operator's Manual

DSU DTE Connection

The rear panel of the Model 3610 DSU has an
EIA-232-D/V.24 (ISO 2110) 25-pin connector for
operation at rates up to and including 19.2 kbps, and a
ITU-T V.35 (ISO 2593) 34-pin connector for operation at
higher rates. Each DSU can be configured to use either
interface. Connection of the DSU to the DTE is a matter
of selecting and installing the appropriate cable.
NOTE
For the V.35 connector, the
recommended maximum distance
between a DTE and DSU is
nominally 1000 feet.
For the EIA-232-D connector, the
effective shunt capacitance of the
circuit, measured at the DSU,
including the capacitance of the
cable and the DTE, must not
exceed 2500 picofarads, as
specified in EIA-232-D.
Install the DTE for each DSU as follows:
1. Connect the plug end of the DTE cable to the
interface on the back panel of the DSU. Tighten
the two holding screws, if present, to secure the
connector.
2. Connect the other end of the cable to the
appropriate port on the computer or DTE. If
present, tighten the two holding screws.
NOTE
If connecting the DTE to the V.35
connector, the DTE Port
configuration option must be set
to V.35 before the DSU can
communicate with the DTE. (The
default for this option is EIA232.)
3. Verify proper operation of the unit by performing
the tests described in the
section.
Appendix E provides connectivity diagrams should
you need further assistance in connecting the DSU to the
network.
3610-A2-GB91-90

Verification Testing

July 1999
Verification Testing
Verification testing should be performed after any
installation. To verify operation of the Model 3610 DSU,
follow the Network Verification procedure. To verify
operation of the SNA Diagnostic Interface option, follow
the SNA Diagnostic Interface Verification procedure.
After installing and configuring a circuit (including
control and tributary DSUs, the DDS network, and DBMs
and their dial connections), perform the following series
of tests from the control DSU to verify network operation
(using either the DCP or NMS):
"
Procedure
1. Request a device Identity (ID from the Status
branch) report from each tributary to ensure that
the DSU is addressed properly.
NOTE
The Model 3610 is delivered with
its network address set to 254.
2. Perform a Digital Test (on the DDS circuit) to
ensure that the network is functioning.
For a DSU equipped with DBM:
1. Use the Dial command to establish a dialed call to
the tributary to test for dial tone and that the DSU
can make and receive calls.
2. Use the Dial command to switch the data to the
PSTN circuit (enter Dial Backup mode) to ensure
that both DSUs have been configured correctly.
3. Perform a Digital Test (on the PSTN circuit).
4. Drop the backup.
For further information, refer to COMSPHERE 3600
Series Data Service Units, Models 3610 and 3611, Time
Division Multiplexer, Multichannel Multipoint, and
Digital Bridge Options, Applications Guide.
Model 3610 Installation
2-11