25
2-4-4. Card Switches
CAUTION
Do not access internal cards or make connections with the unit powered
ON. Always power OFF all connected units / disconnect power cords prior
to accessing the interior.
Further note that adjustments and maintenance should only be performed
by qualified technical personnel familiar with FOR-A equipment.
Remove the two screws on both sides of the MFR-GPI to access the internal card as shown
below. The figure below shows the factory default switch settings.
Switch
Function / Settings
S2,S3
Used for maintenance. Do not use.
S4
Used for maintenance. Do not use. (Factory
default settings are as shown at right. The black
boxes (
■
) represent switches.)
S5,S6,S7,
S8,S9,S10
Used for maintenance. Do not use.
S11
Used for maintenance. Do not use.
S12,S14
Used to select RS-232C/RS-422 for SERIAL 1.
The default setting is RS-232C (both switches
to the left). To change to RS-422, set both
switches to the right.
Switch
Settings
RS-232C
(Factory
default
setting)
S13,S15
Used to select RS-232C/RS-422 for SERIAL 2.
The default setting is RS-232C (both switches
to the left). To change to RS-422, set both
switches to the right.
S16,S18
Used to select RS-232C/RS-422 for SERIAL 3.
The default setting is RS-232C (both switches
to the left). To change to RS-422, set both
switches to the right.
RS-422
S17,S19
Used to select RS-232C/RS-422 for SERIAL 4.
The default setting is RS-232C (both switches
to the left). To change to RS-422, set both
switches to the right.
OFF
ON
OFF
ON
Front
S10
S9
S8
S7
S6
S5
S11
S4
ON
OFF
ON
O
F
F
S12
S13
S16
S17
S2
S14
S15
S18
S19
S3
422
422
232C
232C
422
232C
422
232C
422
232C
422
232C
422
422
232C
232C
422
232C
422
232C
422
232C
422
232C