Nortel-networks Circuit Card Manual de usuario Pagina 410

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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:
1 Identify the MSDL and the PRI cards to be linked.
2 Select the appropriate length cable for the distance between the MSDL
and the PRI card.
3 Plug the 26-pin SCSI II male connector end of a cable into the appropriate
MSDL port.
4 Route 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
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