Reference Manual

16-Axis MACRO CPU Hardware Reference Manual
Jumper and Switch Configurations 9
JUMPER AND SWITCH CONFIGURATIONS
Layout
Jumper Descriptions
E1: Watchdog Timer Disable
Jumper Type Description Default
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
Jumper Type Description Default
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
Jumper Type Description Default
2-Pin
Jump pins 1 and 2 for 9600-baud serial port operation. Remove jumper
for 38400 Baud.
not jumpered
E4: Power Supply-Loss Control (±15Vdc Supply Monitor)
Jumper Type Description Default
2-Pin
Jump pins 1 and 2 to disable servo outputs on loss of +5V, +15V, or –15V
power supply.
Remove this jumper to monitor +5Vdc power supply only. Usually, ±15V
supply monitoring is not required for applications without DACs or A-D
converters.
not jumpered
E40: MACRO Input (Fiber/Wired) Selector
Jumper Type Description Default
2-Pin
Remove jumper to select MACRO wired (RJ45) input from J14.
Jump pins 1 and 2 to select MACRO fiber optic input from U73.
Jumpered (Option A)
Not jumpered (Option C)