Technical data

MKA4ST0UKPLAN5-7/Power Lan/ed.5/09-2003/UK

CHLORIDECHLORIDE

CHLORIDE

POWER PROTECTION

PIN SIGNAL

1 Reserved (+5V @ 10mA)

2 TXD, transmits data to the PC

3 Ground

4 RXD; receives data from the PC

6.2 Computer interface

The Shutdown connector (RJ11 with 4 wires) provides the following signals:

This connector provides RS-232-level signals required for shutdown. The ground is common with the RS-232

connector. The remote shutdown signal (+12V) should persist for at least 2.5 seconds to be accepted. Cable

42 can be used if volt-free contacts are needed as it provides the mains failure and battery low signals through

volt-free contacts (see Options Section).

6.3 POWER CONTROL CONNECTOR (Remote control and signalling)

The POWER CONTROL connector (SUB-D 25 pin female) provides the following signals:

Pin Use Signal

1 Mains failure Active Closed

2 UPS ON Active Closed

3 Low battery Active Closed

4 Solid-state by-pass ON Active Closed

5 Remote shutdown

14 Signal sink

15 Ground (connected to pin 14)

17 Remote start-up +12V

18 Outputs +15V, 100 mA +15V

PIN SIGNAL

1 Low battery

2 Mains failure

3 Ground

4 Remote shutdown (from a PC)