Introduction
1-3
3920-A2-GN31-30
November 1996
DIAGNOSTIC
CONTROL
PANEL
LCD AND
KEYPAD
STATUS
INDICATORS
SPEAKER
POWER
SUPPLY
POWER
CORD
496-14684-01
LEASED
Model 3920
Plus Singleport and
Multiport Housing
Singleport Modem
Back Panel
Multiport Modem
Back Panel
POWER
ON/OFF
DIAL
DTE 1
NMS
POWER IN
DTE 2
DTE 3
DTE 4
POWER
ON/OFF
LEASED
DIAL
DTE 1
NMS
POWER IN
Figure 1-1. Model 3920
Plus Standalone Singleport and Multiport Modems