Page 410 of 906 NT6D80 MSDL card
553-3001-211 Standard 3.00 August 2005
Note: The choices of cable to use with an MSDL card depend on what
type of modem is connected. For example, the NTND27 cable is used
when the modem has a DB25 connection. If the modem is v.35, a
customized or external vendor cable is required.
Cable installation
When the MSDL card is installed, connect the cables to the equipment
required for the selected operation.
PRI trunk connections
D-channel operations require connections between the MSDL and a PRI
trunk card. Refer to Meridian Link ISDN/AP General Guide (553-2901-100)
for a complete discussion of PRI and D-channels.
Procedure 17
Cabling the MSDL card to the PRI card
The following steps explain the procedure for cable connection:
1Identify the MSDL and the PRI cards to be linked.
2Select the appropriate length cable for the distance between the MSDL
and the PRI card.
3Plug the 26-pin SCSI II male connector end of a cable into the appropriate
MSDL port.
4Route the cable through cable troughs, if necessary, to the appropriate
PRI card.
Table 155
Cable types
Function Cable type Cable length
DCH NTND26AA
NTND26AB
NTND26AC
NTND26AD
6 feet
18 feet
35 feet
50 feet
AML, ISL, SDI NTND27AB 6 feet