User`s guide

COMSPHERE 3800Plus Modems
3-2 October 1998 3980-A2-GB30-40
If the modem is to be managed by a network
management system, an SDU must be supplied and
properly connected to the network management controller.
For proper network management connection to the SDU,
refer to the appropriate network management system
user’s guide.
For installation of the 3000 Series Carrier into a
cabinet, refer to the COMSPHERE 3000 Series Carrier,
Installation Manual.
3811 Plus Modem Installation
The 3811Plus modem is designed for installation in a
COMSPHERE 3000 Series Carrier which supplies
operating power and the dial and/or leased-line network
connections. For correct power, DTE, dial-line,
leased-line, NIM, and network management cabling
information, refer to the COMSPHERE 3000 Series
Carrier, Installation Manual.
496-14488-02
TXD
RXD
RTS
CTS
DSR
DTR
LSD
103
104
105
106
107
108
109
Pwr
Alrm
Test
Dial
RI
Busy
Serv
SQ
Status
Front Panel
3811 Plus
142
125
Spkr
Faceplate
EIA232/V.24
Edge Card
Connector
EIA232/V.24
Connector
Unused
V.35
(3600/3500)
RS366A/V.25
(3800)
EIA232/V.24
Rear
Connector
Plate
Figure 3-1. 3811 Plus Modem