Nortel 600 Series Manual page 80

2-73 Switch settings for printed circuit packs
Figure 2-47: NT4T31 Hard Disk Drive pack - switch locations
NTP 297-3601-316
Reserved for future use
X2
X1
Note 1: The top DIP-switch must be set to the "left" position. This setting
indicates that the pack is provisioned on the IOI shelf; the alternate setting is
reserved for future use.
Note 2: When the NT4T31 pack is terminated with an NT3T87AA paddleboard
(as when the pack replaces the NT3T51 Disk Drive), the 14-pin DIP termination
resistors located at positions RN1 and RN2 must be moved to positions X1 and
X2. If the pack is not terminated with the NT3T87AA, the resistors should
remain in positions RN1 and RN2.
For Generic 602.20
IOI
RN2
Pin 1
RN1
08.01
GPIO
August 2006