Nortel Networks 553-3001-211 manual Configuring the Esdi card, Address switch settings

Page 850 of 894 QPC513 Enhanced Serial Data Interface card

Configuring the ESDI 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 182 on page 852 shows the location of all option switches and jumper sockets on the ESDI card.

Address switch settings

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 265 shows the ESDI card address switch settings.

Table 265

ESDI card address switch settings (Part 1 of 2)

			Switch S2				Switch S2
Device Number			style A				style B
Port 1	Port 2	1	2	3	4	1	2	3	4
0	1	off	off	off	on	off	off	off	*
2	3	on	off	off	on	off	off	on	*
4	5	off	on	off	on	off	on	off	*
6	7	on	on	off	on	off	on	on	*
8	9	off	off	on	on	on	off	off	*
10	11	on	off	on	on	on	off	on	*

* Switch S2, position 4 is not used on style B cards.

553-3001-211 Standard 2.00 September 2004