Nortel HomeOffice II User Manual page 52

Hardware installation
Default settings
The default setting of all 16 DIP-switch positions on an HLC is OFF. This
corresponds to a single HLC in a Meridian 1 switch with terminal settings of
9600 and N81 (no parity, eight data bits, and one stop bit).
DIP switch settings for HLCs in an SL-100 PBX
You must set position 4 of SW2 to ON if the HLC is in an SL-100 switch. See
page 35 for a table that lists all DIP switch 2 (SW2) settings.
DIP switch 1 settings
If multiple HLCs are present, each HLC must have a unique address for the
daisy chain to function properly. The first six positions on DIP switch 1 (SW1)
define the unique daisy chain address of that HLC.
On the HLC whose HLC Multi-I/O cable is connected either to the MMI
terminal or the MMI Extension cable, set SW1 position 7 to OFF. This HLC is at
the MMI end.
On the HLC whose HLC Multi-I/O cable is connected to either the SDI port on
the switch or the SDI Extension cable, set SW1 position 8 to OFF. This card is at
the SDI end.
The following table lists the function of each position on DIP Switch 1 (SW1)
Position Determines
1–6
7
8
34
binary daisy
chain address
MMI-end
(HLC directly
linked to MMI)
SDI-end
(HLC directly
linked to SDI)
Setting
0–31 (see "SW1 settings for addressing multiple
HLCs in a daisy chain configuration" on page
40)
OFF = MMI end
(HLC attached to MMI or MMI extension cable)
ON = all other HLCs
OFF = SDI end
(HLC attached to SDI or SDI extension cable)
ON = all other HLCs
Standard 01.02
Meridian HomeOffice II