MI00/10056 rev.1--05/2001-- page 61

11.2 RS232

The EDP70 PLUS UPS is fitted with a 9 pin male ‘D’ type plug which enables a communication link to be
established between a computer and the microprocessor controller in the EDP70 PLUS UPS. The link allows the
Chloride ‘EASY PLUS’ and ‘LIFE 2000’ software to be run on an IBM compatible PC. The link also allows the
communications with a Master JBUS and Multicom/LIFE 2000 adapter.
The function of the pins on the socket are shown below:
The function of each pin is the following :
Pin 1 DCD (Data Carrier Detect)
Pin 2 RXD (Received data)
Pin 3 TXD (Transmitted data)
Pin 4 DTR (Data terminal ready)
Pin 5 GND (Ground)
Pin 6 DSR (Data Set Ready)
Pin 7 RTS (Request To Send)
Pin 8 CTS (Clear To Send)
The signals applied on each pin follows the standard EIA RS232.
12.0 REMOTE ALARMS
Remote indication of the state of the EDP70 PLUS UPS is provided by a 15 pin female ‘D’ type socket and is
designed to be used in conjunction with the Chloride EDP Remote Alarm Unit. The function of the pins on the
socket are shown below:
Fig.22: EDP70 PLUS Remote Alarms Pin Layout
Pin 1System normal signal
Pin 2System normal and system summary alarm ground
Pin 3Inverter fail signal
Pin 4Inverter fail ground
Pin 5Reserve to load signal
Pin 6Reserve to load ground
Pin 7Primary supply failure signal
Pin 8Primary supply failure ground
Pin 9Shutdown imminent signal
Pin 10 Shutdown imminent ground
Pin11, 12 supply: 18V/200mA nominal AC output
Pin 15 Summary alarm signal
Pins 1,2 and15 are available for use as a remote summary alarm indicator in alternative to the Chloride
Remote Alarm Unit. All pins are volt free contacts which are capable of carrying a current of 0.5 A and
switching 30 V.