Installation and Wiring
9
AXB-232++ - Instruction Manual
Wiring Devices to the AXB-232++
Preparing Captive Wires
To connect the wiring into a captive-wire connector:
1.
Strip 1/4 inch off the wire insulation for all four wires.
2.
Tin 2/3 of the exposed wire.
3.
Insert each wire into the appropriate captive-wire connector up to the insulation.
4.
Tighten the captive screws to secure the fit in the connector.
NOTE:
If the device is using a separate power supply, do not connect the power wiring from the AXB-232++ to that device.
Wiring Guidelines
The interface requires a 12 VDC power to operate properly. The interface uses a PSN2.8 power supply. The Central Controller
supplies power via the AxLink cable or external 12 VDC power supply. The maximum wiring distance between the Central Controller
and interface is determined by power consumption, supplied voltage, and the wire gauge used for the cable.
The table below lists wire sizes and maximum lengths allowable between the AXB-RS232++ and Central Controller.
The maximum wiring lengths for using AxLink power are based on a minimum of 13.5 volts available at the Central Controller’s
power supply.
Using AxLink
Connect the AxLink wiring to the connector on the AXB-232++ as shown in FIG. 3.
Using AxLink and External Power Supply
Connect the AxLink and power wiring to the connector on the AXB-232++ as shown in FIG. 4.
Using RS-232
When communicating via RS-232, connect the wiring as shown in FIG. 5.
Wiring Guidelines at 160 mA
Wire Size
Maximum Wiring Length
18 AWG
733.57 feet (223.59 m)
20 AWG
464.11 feet (141.46 m)
22 AWG
289.35 feet (88.19 m)
24 AWG
182.39 feet (55.59 m)
FIG. 3
AxLink bus and +12 VDC power wiring
FIG. 4
AxLink bus and +12 VDC power wiring
FIG. 5
RS-232 wiring
PWR
AXP
AXM
GND
AxLink
System
PWR
AXP
AXM
GND
AxLink
System
Power Supply
AXP
AXM
GND
+12VDC
GND
GND
RX -
TX
+12V
AXB-232++
Device
GND
RX
TX
RX +
TX -
TX +
RX
