Paradyne COMSPHERE
3610, Operator'S Manual

Page: 59 / 310

Model 3610 Installation
2-3 3610-A2-GB91-90 July 1999
Hardware Straps
HANDLING PRECAUTIONS
FOR
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 3610 DSU has a switch located behind its
diagnostic control panel (DCP). This switch contains two
straps. One strap controls the permissive or programmable
connection for the V.32 DBM, and one strap controls the
frame-to-signal grounds. Table 2-1
shows the DSU’s
switch settings. Refer to Figure 2-1 and follow these steps
if you need to change one of these straps.
"
Procedure
1. With your thumbs under the edge of the front
bezel, firmly press upward to lift the bezel from
the tabs securing it in place.
2. Swing the front bezel up and set the bezel aside.
3. Refer to Table 2-1 to determine which switch
needs to be changed. Then, using a small
instrument, carefully change the position of the
switch.
4. Reinsert the front bezel’s hinge tabs into position
and swing the bezel down. Snap the bezel back
into place.
Table 2-1
Model 3610 DSU Switch Settings
Switch Position Switch Setting Function
S1 1
ON
(default)
Permissive V.32 DBM transmit output level of –9 dBm
S1-1
Off Programmable V.32 DBM transmit level between
–12 dBm and 0 dBm (V.32 DBM only)
ON Frame ground (FG) connected to signal ground (SG)
S1-2
Off
(default)
FG connected to SG through 100 ohm resistor
ON is to the rear as you face the front of the DSU.
Off is to the front.