PBus II Protocol

Cable Connections

The device connects to the switcher over an RS-232 or RS-422 serial connection to a DB9 port on the switcher.

Table 1. Acuity™ Serial Cable Connections
Remote Port (RS-232) Remote Port (RS-422)
2 (Tx) 2 (Rx-)
3 (Rx) 3 (Tx+)
5 (GND) 7 (Rx+)
8 (Tx-)

Switcher Setup

The switcher must be set up to communicate with the PBus II device using a serial protocol.

To Set Up Communications

  1. Press HOME > Setup > Installation > Com Setup
  2. Press Type and use the Com Port knob to select the remote port that you want to set up for the device.
  3. Use the Device knob to select Pbus.
  4. Press Select Device and use the Device knob to select Pbus.
  5. Press Com Type and use the Type knob to select the transmission standard for your device.
  6. Press Com Settings and use the Baud and Parity knobs to select the communications setting for your device.
  7. Press Extra Options and use the Option and Value knobs to set the device parameters.
    Option Value
    Query Cmd Relaxed (default)
  8. Press HOME > Confirm.