COMSPHERE 3600 Data Service Units
2-4
December 1996
3610-A2-GB43-50
Switched 56
kbps
Network Connection
WARNING
Do not insert the 2-wire
switched 56 kbps plug into an
RJ11C jack providing PSTN
service. This type of jack is
intended for analog public
switched telephone network
(PSTN) devices. Doing so may
cause equipment damage and
harm to the telephone
network.
To make a physical connection to the switched 56 kbps
network:
.
Procedure
1. Plug one end of the switched 56 kbps network
interface cable into the DSU jack labeled
BACKUP. Verify that you have the right cable:
For a DSU with a . . .
Use the . . .
2-wire Switched 56 DBM
6-pin cable
4-wire Switched 56 DBM
8-pin cable
2. Plug the other end of the cable into the modular
jack provided for the switched 56 kbps network
connection.
495-14860
Switched 56 kbps
Network Connection
Backup
POWER
LINE
BA
CK
UP
CC
/DC
V.35
SJA56
or SJA48
Wall Jack
ISDN DBM Network
Connection
The 2-wire ISDN DBM has an integral Network
Termination 1 (NT1). The NT1 provides the termination
of the ISDN U-interface from the network.
To make a physical connection to the ISDN network
U-interface:
.
Procedure
1. Plug one end of the ISDN network interface cable
into the DSU jack labeled BACKUP.
2. Plug the other end of the cable into the modular
jack provided for the ISDN network connection.
495-14580-01
ISDN
Network Connection
Backup
POWER
LINE
BA
CK
UP
CC
/DC
V.35
SJA11
U-Interface
Connector
3. Enter and save the following required fields:
•
SPID number(s) (SPID)
•
Switch type (SwitchTyp)
•
Local seven-digit telephone number(s) (Phone)
Refer to the Configuration Branch section in Chapter 3
and Appendix C, Ordering ISDN Service, in the DBM
Options Supplement for details.
