SA-ACU-SR User Manual
S-Access GmbH
Tel: +41 44 700 31 11
Oberhausenstrasse 47
Page 3 of 16
Fax: +41 44 700 31 03
8907 Wettswil a/A Email: contact@s-access.ch
Switzerland WEB: www.s-access.ch
VERSION CONTROL..........................................................................................................4
1 THE SA-ACU MODULE.............................................................................................5
2 ORDERING INFORMATION......................................................................................6
3 DESCRIPTION OF THE SA-ACU MODULE .............................................................7
3.1 Schematic of the module................................................................................... 7
3.2 Description and lay-out of jumpers and sockets ...............................................8
3.3 Control and configuration of the modules .........................................................9
3.4 Alarm relays ...................................................................................................... 9
3.5 Connection of the shelf to the clock source ....................................................10
3.6 Connection of external devices over the RS485 interface .............................. 10
3.7 Power failure alarm ......................................................................................... 11
4 INSTALLATION.......................................................................................................12
4.1 SA-ACU-SR installation ..................................................................................12
4.2 Installation requirements ................................................................................. 12
5 TECHNICAL SPECIFICATIONS..............................................................................13
5.1 Interfaces ........................................................................................................13
5.1.1 Monitor-interface ...............................................................................13
5.1.2 RS485 interface................................................................................. 14
5.1.3 Alarm relay interface .........................................................................15
5.1.4 External clock source interface .........................................................15
5.2 Power supply................................................................................................... 15
5.3 Service requirements ...................................................................................... 16
5.3.1 Climatic conditions ............................................................................16
5.3.2 Safety ................................................................................................ 16
5.3.3 EMC 21 .............................................................................................16
5.3.4 Dimensions........................................................................................ 16