Physical description – Nortel Networks 1000 User Manual

Page 384

384

NT6D80 MSDL card

Though the MSDL is designed to coexist with other cards, the number of
ports supported by a system equipped with MSDL cards is potentially four
times greater than when using other cards. Since each MSDL has four
ports, representing a single device, a system can support as many as 16
MSDL cards with a maximum of 64 ports.

Physical description

The MSDL card is a standard size circuit card that occupies one network
card slot and plugs into the module’s backplane connector to interface
with the CPU bus and to connect to the module’s power supply. On the
faceplate, the MSDL provides five connectors, four to connect to I/O
operations and one to connect to a monitor device that monitors MSDL
functions.

Figure 100 "MSDL component layout" (page 384)

illustrates

major MSDL components and their locations on the printed circuit card.

Note:

Switches S9 and S10 are configured to reflect the device number

set in LD 17 (DNUM). S10 designates tens, and S9 designates ones.
For example, set device number 14 with S10 at 1 and S9 at 4.

Figure 100
MSDL component layout

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008