RT12-0044-ZP-S12 – External Battery Back-up
Connecting an Optional External Backup Battery to
!WARNING! Use Caution When Connecting Any Rechargeable Battery to any of the RT series RTU’s. Make sure that the BATTERY is NOT connected until the connection is made to the controller first. This will minimize the chance of damage to the controller if the charging wiring harness is connected incorrectly. Use only Nickel Cadmium 12Vdc and a minimum of 1.5 Amp Hour batteries. Use only fused cable. The RTU is internally fused as well.
1)Connect the RED wire from the Charging wiring harness to pin 19, “BATT” of the respective RTU device. The Master and Slave controllers are identical in wiring, features and programming. Be sure a 1 Amp FAST blow fuse is installed.
2)Connect the BLACK wire from the Charging wiring harness to pin 20 , “Gnd”, of the Respective RTU.
3)Confirm the above instructions. If the connections are correct, connect the RED wire to the (+) of the battery and the black wire to the
Manual Documentation Number: | 21 |
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph
Hardware Set-up
Typical Application: Peer-to-Peer
Below is a typical overview of the communications method for the MASTER and SLAVE allow analog data to be passed from the master to the slave and
22 | Manual Documentation Number: |
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph
