Installation Planning; Hardware Straps - Paradyne COMSPHERE 3610 Operator's Manual

COMSPHERE 3600 Series Data Service Units
Software configuration
DDS network (or LADS) connection
PSTN or switched 56 kbps network connection (if a
DBM is installed)
DSU DTE connection
Verification testing
This chapter tells you how to perform these steps. A
section about replacing firmware is also included.

Installation Planning

The DSU is ready for installation in the COMSPHERE
3000 Series Carrier; the carrier should already be installed
properly and be operational, with a functioning SDCP. For
installation information, see the COMSPHERE
3000 Series Carrier, Installation Manual.
If installing additional DSUs into an existing
COMSPHERE 3000 Series Carrier, a fan module may
need to be installed to dissipate heat. Refer to the Fan
Module Installation section in Chapter 3 of the
COMSPHERE 3000 Series Carrier, Installation Manual
to determine whether a fan is required.
The distance between your DTE and the DSU must be
within EIA-232-D/V.24 or V.35 limits. 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. For the V.35 connector, the
recommended maximum distance between a DTE and
DSU is nominally 1000 feet.
The DSU can be operated only at the data rate for
which access to the DDS network is provided.
Coordination with the telephone company is necessary,
and the telephone company must be notified before you
connect the DSU. Refer to the notice at the front of this
manual to ensure compliance with FCC, Bell Canada, and
Canadian DOC rules. For DSUs with integrated backup
modems, coordinate your installation with the telephone
company before connecting to the PSTN (dial) network.
3-2

Hardware Straps

HANDLING PRECAUTIONS
STATIC-SENSITIVE DEVICES
This product is designed to protect
sensitive components from damage
due to electrostatic discharge (ESD)
during normal operation. When
performing installation procedures,
however, take proper static control
precautions to prevent damage to
equipment. If you are not sure of the
proper static control precautions,
contact your nearest sales or service
representative.
The Model 3611 DSU has several hardware straps,
which determine:
Characteristic of the PSTN connection –
switch-selectable as permissive (the default) or
programmable
Test Mode Indication – jumper-selectable as
enabled (the default) or disabled
Alarm Monitoring – for use with the – 48 Vdc
Central Office Power Unit
The Model 3611 has one switch and two jumpers on
the circuit card that should be repositioned, if necessary,
before it is inserted into the carrier
non-modular and modular, respectively).
To change the straps:
"
Procedure
1. Enable or disable the Test Mode Indication
jumper. Two hardware straps, labeled J12 and J13
in Figures 3-1
Indication feature for the V.35 and
EIA-232-D/V.24 interfaces, respectively.
Enable – Put the jumper on the two pins nearest
the faceplate of the card (Pins 1 and 2). This is the
factory default setting.
Disable – Put the jumper on the two pins nearest
the rear of the card (Pins 2 and 3).
July 1999
FOR
(Figures 3-1 and 3-2,
and 3-2, control the Test Mode
3610-A2-GB91-90