Chapter 4 - Optional equipment 7400 Series UPS User Manual
RS 232 Communications Management Board (SGC) (4550002C) Single Module and One plus One Systems
6310018a.02.doc
4-16
Issue 2
(02/98)
The system is made up of the following parts or sub-systems:
1. RS 232 Communications Management Board (SGC), for installation
within the UPS.
2. Batteries:
these may be of any non-rechargeable type (alkaline, ‘environment-
friendly', etc.) as long as they are of the correct size (AAA).
3. Personal computer for local connection
4. Flat, 25-wire cable ending in two 25 pin connectors, one male and
one female, for UPS-PC connection.
5. Digital telephone modem for connection to the board.
6. Flat, 25-wire cable ending in two 25 pin connectors, one male and
one female, for local UPS- modem connection.
7. Personal computer plus digital telephone modem for remote station.
8. Flat, 25-wire cable ending in two 25 pin connectors, one male and
one female, for remote modem-PC connection.
The possible types of connection, as shown in figure 4-8 , are as follows:
Direct Connection
This type of connection requires items 1, 2, 3, and 4 from the above list.
It is possible to obtain data from a distance of upto 15 metres through the
EIA RS232E interface.
Remote Connection (i.e. via telephone modem)
This type of connection requires items 1, 2, 5, 6, 7, 8 and a commuted
telephone line.
Complete Connection
Complete connection require the total resources of the above.
Full installation and operating instructions are supplied with the option.
4.6.2 General Information
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