Nortel HomeOffice II, User Manual

Page: 71 / 214

Line Card Configuration Guide 53
July 1999 Hardware installation
Installing and cabling multiple HLCs
Introduction
Preparing the switch and actually placing the HLCs into their slots are identical
procedures, no matter how many HLCs there are in your system. However,
cabling is different for one-, two-, and more than two-HLC systems.
In all systems, the switch’s SDI connection is provided by either a 25-pin male
SDI port or a cable kit with a 25-pin male connection. Establish your system’s
SDI link by attaching P3 of the HomeOffice Line Card (HLC) Multi-I/O cable,
or the female 25-pin connector of the SDI extension cable to the switch’s SDI
connection.
For details on the potential methods of connecting to an MMI terminal, see
“MMI terminal connection scenarios” on page 49.
This topic explains how to install and cable multiple HLCs into the same system.
Refer to the illustration on page 29 for help in making the proper connections. If
you are installing a single HLC, see “Installing and cabling a single HLC” on
page 51.
To prepare for installation
1
Configure each slot into which an HLC is to be inserted as if it were to hold
an extended digital line card (XDLC). Refer to the documentation specific to
your switch for the exact procedures.
2 Set the DIP switches for the appropriate HLC configuration. See
“Understanding the DIP switches” on page 33.
3
Verify that each HLC to be installed in the daisy chain has a unique address
and that all HLCs have the same terminal settings by checking each HLC’s
DIP switch configurations. See “Setting the DIP switches for multiple HLCs”
on page 37.