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Service Guide OL830
Chapter A Reference Charts
A.2.03 AppleTalk/Serial Interface Board (APSR) Option
Firmware
NONE
Fuses
FU1 (1 amp): Pr5vdc supplied to pin 18 on the RS232C Port.
Jumpers
Jumper T1:
Pins 2 and 3 jumpered su5vdc at pin 18 on the RS232C Port. (Factory Setting)
Pins 1 and 2 jumpered, +5vdc is not supplied to pin 18
.
Jumper T2:
Pins 1 and 2 jumpered selects pin 20 (DTR) on the RS232C Port as the Busy Signal.
(Factory Setting)
Pins 2 and 3 jumpered selects pin 11 (SSD) on the RS232C Port as the Busy Signal.
Sensors
NONE
Switches
NONE
Test Points
NONE