TOWER SYSTEM
5
Jumper
Option
Setting
Description
J3
LED Enable for Digital Signal Block A (3x PWM)
1-2
Provides power to the associated LEDs, remove
to isolate PWM signals or to use JP1 - JP3
J4
LED Enable for Digital Signal Block B (3x PWM)
1-2
Provides power to the associated LEDs, remove
to isolate PWM signals or to use JP4 - JP6
J5
LED Enable for Digital Signal Block C (3x Timer)
1-2
Provides power to the associated LEDs, remove
to isolate timer signals or to use JP7 - JP9
J6
Voltage I/O selection
1-2
5V interface between MCU and transceivers
2-3
3.3V interface between MCU and transceivers
J7
USB2SER RTS/CTS
1-2
Provides a loopback of RTS/CTS, remove to
allow access to RTS and CTS
J9
USB2SER TX/RX
1-2
Connects UART0 TX to USB2SER RX.
Pin 1 - UART0 TX, Pin 2 - USB2SER RX
3-4
Connects UART0 RX to USB2SER TX.
Pin 3 - UART0 RX, Pin 4 - USB2SER TX
J13
CAN1 Termination Enable
1-2
Enables 121 Ohm termination between CANH
and CANL
J14
CAN2 Termination Enable
1-2
Enables 121 Ohm termination between CANH
and CANL
J15
CAN Isolation Jumpers
1-2
Connects CAN1_TX to TXD on CAN transceiver
associated with J11
3-4
Connects CAN1_RX to RXD on CAN transceiver
associated with J11
5-6
Connects CAN1_TX to TXD on CAN transceiver
associated with J12
7-8
Connects CAN1_RX to RXD on CAN transceiver
associated with J12
TWR-IND-IO Jumper Options
The following is a list of all jumper options. The default installed jumper settings are
shown in white text within the black boxes.
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from