Installing the Model 3550 DSU
2-3
3550-A2-GB20-40
July 1999
496-14457-01
SWITCH 1
HINGE TAB
LOCATIONS
FRONT BEZEL
COMSPHERE
3550
SNAP
TABS
Figure 2-1. Model 3550 Hardware Switch Location (shown without a TDM/Flex)
Table 2-1
Model 3550 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
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.
Содержание Comsphere 3551
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