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(2) RS-422A interface
This board had two DIP switches: one 8-bit switch and one 4-bit switch.
DIP switch #1 (8 bits):
Identical to the DIP switch on the RS-232C. (Bit 1-7 is disabled.)
DIP switch #2 (4 bits):
DC1,3 off
Address
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
#11
#12
#13
#14
DC1,3 mode on
* DIP-SW #2 overrides the DIP-SW #1 DC1/3 setting (bit 1-7).
* DIP-SW #2 factory setting: All ON
(3) Parallel (Centronics) interface
The parallel-interface board has no DIP switches.
SW2-1
SW2-2
ON
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
OFF
OFF
– 10 –
SW3-3
SW2-4
ON
ON
ON
ON
ON
ON
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
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