AERCO ProtoNode Gateway Rev 3 (with external LEDs) - Manual (Page 19)

AERCO ProtoNode Gateway
User Manual
OMM-0080_0H AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 19 of 126
GF-129 Ph.: 800-526-0288 11/06/2014
3.4 ACS/BMS II Wiring Connections to ProtoNode RER and LER
• When an ACS, BMS OR BMS II is being used, an RS-485-to-RS-232 converter will be
required to connect it to the ProtoNode’s RS485 port (6-pin Phoenix connector).
• Refer to Figures 3-6 and 3-7 to locate the internal RS-232 connector JP12 (BMS) or JP5
(BMS II/ACS) inside the wiring area of the ACS/BMS II.
• If the AERCO RS232-to-RS485 Converter (part no. 124943) is used, the RS-232 side of the
converter contains a connector that plugs directly into header connector JP12 (BMS) or JP5
(BMS II/ACS).
• If a third party converter is used, connect the RS-232 Receive (RxD) and Transmit (TxD)
wire leads to the internal RS-232 connector (JP12 or JP5) as shown in Figures 5 and 6. DO
NOT connect the wire shield on this side of the converter.
NOTE
If a third-party RS232-to-RS485 Converter is used, consult the
manufacturer’s instruction manual for signal polarity.
• On the RS-485 side of the converter (Figure 3-6 and 3-7), connect the wire leads as follows:
o Connect the TD B (+) terminal to the ProtoNode’s RS485+ Port.
o Connect the TD A (-) terminal to the ProtoNode’s RS485- Port.
o Connect the GND terminal to the ProtoNode’s RS485 Frame GND Port.
o Place the ProtoNode’s termination jumper in the ON position.
FIGURE 3-6: RS-232 Connection to BMS
FIGURE 3-7: RS-232 Connection to ACS/BMS II