Model 3611 Installation
3-3
3610-A2-GB91-90
July 1999
Refer to Table 3-1 for ON and Off function
details. When enabled (as shown in Figures 3-1
and
3-2
), the V.35 lead NN and EIA-232-D/V.24
Pin 25 go to a ON/SPACE (+EIA level) condition
during a Test mode. When disabled, the leads do
not change to indicate a Test mode. The indicator
lead for each interface can be enabled or disabled
independently.
2. Enable or disable the external interface leads
jumper. The hardware strap labeled J21
(
Figure 3-2
) controls the alarm forwarding feature.
Enable – Put the jumper on the two pins nearest
the faceplate of the card (Pins 1 and 2).
Disable – Put the jumper on the two pins nearest
the rear of the card (Pins 2 and 3). This is the
factory default setting.
Table 3-2
lists the jumper straps for the Model 3611
DSU (non-modular and modular). Refer to the
COMSPHERE 3600 Series Data Service Units,
Models 3610 and 3611, Dial Backup Module and SNA
Diagnostic Interface Options, Applications Guide to set
the V.32 DBM interface switch.
Figure 3-1. Non-Modular Model 3611 Circuit Card Switch and Jumper Locations
Table 3-1
Model 3611 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 is to the rear as you face the front of the DSU.
Off is to the front.
Содержание COMSPHERE 3610
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Страница 246: ...COMSPHERE 3600 Series Data Service Units E 2 July 1999 3610 A2 GB91 90 Figure E 1 Control Channel ...
Страница 247: ...Network Management Connectivity E 3 3610 A2 GB91 90 July 1999 Figure E 2 Extended Control Channel ...
Страница 259: ...Pin Assignments F 11 3610 A2 GB91 90 July 1999 Figure F 8 EIA 232 D Crossover Cable 4951 035F ...
Страница 263: ...Troubleshooting G 3 3610 A2 GB91 90 July 1999 Figure G 2 No Signal NS Condition Troubleshooting ...
Страница 265: ...Troubleshooting G 5 3610 A2 GB91 90 July 1999 Figure G 4 Out of Frame OOF Condition Troubleshooting ...
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