Configuring The Esdi Card - Nortel Circuit Card Installation Manual

Page 862 of 906

Configuring the ESDI card

Address switch settings
553-3001-211 Standard 3.00
QPC513 Enhanced Serial Data Interface card
Configuring the ESDI card consists of setting the port addresses using the
address selection switch and setting the port interface options using the
jumper blocks. The system software must then be configured to recognize the
ESDI card. Figure 185 on
and jumper sockets on the ESDI card.
The two ESDI ports on the card are addressed in pairs such as 0 and 1, 2 and
3, and so on). The address is set using switch S2. The switch settings used to
select the address vary depending on whether the card is Style A or Style B.
The "Style" can be read on the printed circuit board silk screen. The address
of the card is set to match the device address defined in software.
Synchronous port address space is the same as asynchronous port address
space. When selecting an address for the ESDI card, make sure that it will not
conflict with an address currently being used by an asynchronous card.
Table 270 shows the ESDI card address switch settings.
Table 270
ESDI card address switch settings (Part 1 of 2)
Device Number
Port 1 Port 2
0 1
2 3
4 5
6 7
8 9
10 11
* Switch S2, position 4 is not used on style B cards.
August 2005
page 864 shows the location of all option switches
Switch S2
style A
1 2 3
off off off
on off off
off on off
on on off
off off on
on off on
Switch S2
style B
4 1 2
on off off
on off off
on off on
on off on
on on off
on on off
3 4
off *
on *
off *
on *
off *
on *