Specifications

SQ: 5-12
RS3: Service Quick Reference Guide
Consoles
Keyboard Interface LEDs
LED
Color Meaning
DS1 Yellow Flashes when receiving data from the printer interface
DS2 Yellow Flashes when sending data to the printer interface
DS3 Red Fuse F1 is blown
Keyboard Interface Jumper Setting
Jumper Position
Function
HD2 1--2
12.86¯
Console software is at revision 12.86 or lower
(Not present on 1984--1978--000x)
HD2 2--3
12.90
Console software is at revision 12.90 or higher
(Not present on 1984--1978--000x)
J414
Jumper wire
1984--3222--1004 only. Standard keyswitch application
J414
Dual keyswitch cable
1984--3222--0004 only. Dual keyswitch application
Keyboard Interface Fuses
Part No.
Name on
PWA
Fuse
FRSI
Part No.
Schurter
Part No.
Littelfuse
Part No.
Charac-
teristics
1984--
3222--000x
1984--
2889--000x
Keybd
Interface/
Video
Isolator
F1
C50382--0
021
MSF
034.4224
273002
2 A 125 V
Plug-In
1984--1978
--000x
Console/
Keyboard
Interface
F1
F2
C50382--0
021
MSF
034.4224
273002
2 A 125 V
Plug-In