Table Of Contents - Siemens 7SR21 Manual

Contents
Section 1: Introduction ..........................................................................................................................4
Section 2: Physical Connection............................................................................................................5
2.1 Communication ports ................................................................................................................5
2.1.1 Standard USB Interface ...............................................................................................5
2.1.2 Standard RS485 Interface............................................................................................6
2.1.3 Optional Fibre Optic Interface ......................................................................................7
2.1.4 Optional Rear RS485 + IRIG-B Interface...................................................................11
2.1.5 Optional Rear RS232 + IRIG-B Connection ..............................................................11
Section 3: Modems...............................................................................................................................12
3.1 Connecting a Modem to the Relay(s) .....................................................................................12
3.2 Setting the Remote Modem ....................................................................................................12
3.3 Connecting to the Remote Modem .........................................................................................12
Section 4: Configuration......................................................................................................................14
Section 5: Glossary..............................................................................................................................15
©2010 Siemens Protection Devices Limited
7SR21 & 7SR22 Data Communications
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