ABB XSeriesG4 User Manual page 108

Verify communication set up
Verify the following items were correctly set up during the initial installation. If communications were previously operational,
verify that no changes have altered the correct settings:
–
Verify RS-232 or RS-485 interface modules and jumpers are installed or set correctly.
–
Verify that radio cable or wiring is correctly installed at the radio.
–
Verify field wiring terminations on the XRC
–
G4
Check the XRC identifier (ID). Log the ID for future reference.
–
G4
Log the XRC access security code, baud rate, listen cycle, protocol and interface for future reference.
NOTE: The following helpful hints aid the user after communication equipment has been installed and setup:
- If the comm port is assigned to an annunciator, the XRCG4 displays the  after it recognizes the XRCG4 ID.
- Check the baud rate of the XRC
when PCCU is in Entry mode. Default settings are 1200 baud, listening time is 4 seconds, and communications
interface is turned off.
- Minimum power required for operating remote communications is 11.9 Vdc (default) or as set by user. Should
the power fall below this level, remote communications will be terminated.
- Test remote communications using RS-232 troubleshooting cable (2011781-xxx). Use RS-232 to RS-485
communication converter (1800255-xxx) in conjunction with RS-232 troubleshooting cable to test RS-485
remote communications.
Transceiver supply voltage test
Using wiring information and guidelines supplied by the transceiver manufacturer, verify that the transceiver is receiving the
manufacturer's suggested voltage. If the unit is receiving sufficient voltage, continue to the 12 V Communication supply voltage
test.
NOTE: If the transceiver is not receiving sufficient voltage, investigate power supply issues. These may involve
wiring irregularities at either the AC charger / power supply system or the XRC
12V Communication supply voltage test
Step-by-step instructions
If the transceiver does not feature a SLEEP mode and power is supplied through an optional relay, perform Step 1, Switched
Power Supply Voltage Test.
If the transceiver features a SLEEP mode, or is continuously powered, perform Step 2.
If the transceiver does not feature a SLEEP mode and receives power through the XRC
Serial Port 1 or 2 Switched Power Out (pin 3) and, using a digital multimeter (DMM) set to Volts DC, measure the voltage
at J6 between: J6-2 (GND) and J6-3 (SWVBAT). Voltage should be greater than 11.9 Vdc for this unit. If the voltage is
equal to or less than 11.9 Vdc, return to the test sequence outlined in the Power Troubleshooting Flowchart (see Figure
80).
If the transceiver features a SLEEP mode or is continuously powered, using a DMM set to Volts DC, measure the voltage
at J6 between: J6-2 (GND) and J6-1 (VBAT). Voltage should be greater than 11.9 Vdc for this unit. If the voltage is equal
to or less than 11.9 Vdc, return to the test sequence outlined in the Power Troubleshooting Flowchart (see
G4
board.
G4
transmission and timing. The baud rate and timing settings can be changed
96
G4
board.
G4
Switched Power, activate
Figure 80
).