Galaxy, using RS422 hardwire communication and unable to connect, extra cable connecting signal converter.

Symptoms

  • Unable to connect to the display using M2Config and Venus 1500.
  • Unable to communicate to the sign, even though loopback test appears to be passing at the sign.

Environment

  • Galaxy
  • RS422 Hardwire communication
  • RS232 to 422 signal converter with multiple outputs

Cause

  • Unneeded cable connecting J2 or J3 of the signal converter to unused equipment.
    • Unused equipment may be old communication equipment or equipment unrelated to the sign in any way.

Resolution

  • Disconnect the extra cable connecting to the unneeded equipment. 

KB ID: DD3561496


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