NCR S26 manual Terminator Setting With External Device, Without External Device

SCSI Channel Configurations

Connect the second set pins for both jumpers J3 and J4 as shown in the figure

below.
Figure D-4. J3 and J4 Jumper Settings
J3	J4

The table below lists the terminator settings for the single-channel configuration.

Table D-1. Terminator Settings for Single-Channel Configuration

Terminator	Setting
With External Device
RA1, RA2, RA3	Removed
RA4, RA5, RA6	Removed (see note)
Without External Device
RA1, RA2, RA3	Installed
RA4, RA5, RA6	Removed

Note: For configurations with external device, terminate the signal at the external device. Also, be sure the terminator switches are set to the left (combine) position when installing a single-channel configuration.

D-8 Hot Plug Backplane