MACRO CPU Board Hardware Reference Manual
10
Jumper and Switch Configurations
E1: Watchdog Timer Disable
Rev –105 and
Later Location
Rev –104 and
Earlier Location
Jumper
Type
Description Default
B-1
F-1
2-Pin
Remove jumper to enable Watchdog Timer.
Jump pins 1 and 2 to disable Watchdog Timer
(for test purposes only).
Not jumpered
E2: CPU Mode Operation
Rev –105 and
Later Location
Rev –104 and
Earlier Location
Jumper
Type
Description Default
D-2
D-1
3-Pin
Jump pins 1 and 2 for firmware download
through serial port.
Jump pins 2 and 3 for normal operation.
Pin 2-3
E3: Serial Port Baud Rate
Rev –105 and
Later Location
Rev –104 and
Earlier Location
Jumper
Type
Description Default
E-3
E-2
2-Pin
Jump pins 1 and 2 for 9600-baud serial port
operation. (Required for Yaskawa interface).
Remove jumper for 38400-baud serial port
operation.
Not jumpered
E4: Power Supply-Loss Control (±15Vdc Supply Monitor)
Rev –105 and
Later Location
Rev –104 and
Earlier Location
Jumper
Type
Description Default
E-3
E-2
2-Pin
Jump pins 1 and 2 to disable servo outputs on
loss of +5V, +15V, or –15V power supply.
Remove this jumper to m5Vdc power
supply only.
Not jumpered
±15V supply monitoring is not usually required
for applications without DACs or A-D
converters.
E5: MACRO Received Signal Detect/Bypass Mode (Rev -105 and 106 only)
Does not Exist on Rev 107 and Later Models
Rev –105 and
Later Location
Rev –104 and
Earlier Location
Jumper
Type
Description Default
B-3
3-Pin
Jump pins 1 and 2 to access the receiver’s
signal detect operation.
Jump pins 2 and 3 to bypass the receiver’s
signal detect operation.
This jumper does not exist on MACRO-CPU
versions -104 and earlier.
Pin 1-2
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