Paradyne Comsphere 3550 Series Quick Reference Manual page 5

Table 1. Model 3550 DSU Switch Settings
Switch Position
S1-1 S1 1
S1-2 S1 2
ON is to the rear as you face the front of the DSU.
Off is to the front.
Switch Setting
ON
(default)
Off
ON
Off
(default)
Function
Permissive V.32 DBM transmit output level
of –9 dBm
Programmable V.32 DBM transmit level
between –12 dBm and 0 dBm
Frame ground (FG) connected to signal
ground (SG)
FG connected to SG through 100 ohm
resistor
3