Application
ABB SPA-RS485, a communication connector converter, applies to ABB equipment and converts SPA BUS communication connector to standard RS485 communication bus.
Functions and Features
1. Support RS485 semi-duplex mode.
2. Without connecting external power supply, long-distance transmission can be achieved.
3. Zero delayed automatic conversion to the direction of sending and receiving of RS485 signal.
4. No need to amend the original software, RS232 communications distance can be extended by 1200 meters.
5. Support multi-machine communications and connect up to 32 nodes.
Performance Parameters
1) Power: no need connecting external power supply
2) Communication mode: half-duplex
3) Transmission Line: UPT (Unshielded Twisted Pair)
4) Communication distance: 1000 meters
5) Communication rate: 110bps-115200bps
6) Connecting nodes: 128pcs
7) Dimension: DB9/DB9 adapter box 53×33×17mm; conversion wiring joint 73×33×17mm
Pin Definition
1. SPA Terminal (D89M/Needle-type)

2. Pin definition of RS-485 terminal (DP4 screw-compression joint-type)

PS: SPA485 converter need not connect external power.
Remarks
SPA connecting with RS-485 equipment (signal conversation function)
RS-485(screw compression joint type)

485- ----------------------------- data -
486+ ----------------------------- data +
PS:SPA terminal (needle-type)of SPA-485 converter connect directly with SPA communication port of AAB equipment