Siemens GW-23 Technical Manual
Gateway GW-23
GW-23
Technical Manual
Document No.
Edition 03.99
Supersedes -
e1476
Manual
Section 2
Hardware Installation
Cerberus Division
Table of contents
1 Introduction _________________________________1
1.1 Scope of this document _________________________________________ 2
1.2 Related publications ____________________________________________ 2
2 Product description ___________________________3
2.1 The CPU board_________________________________________________ 3
2.2 The connection board___________________________________________ 4
2.3 Power supervision______________________________________________ 6
3 connection cables ____________________________7
3.1 Connection GW-23 - ISDN adapter_________________________________ 7
3.2 Connection GW-23 - Modem______________________________________ 8
3.3 Connection to Cerberus subsystem _______________________________ 8
3.4 Connection layout ______________________________________________ 9
4 Technical data ______________________________10
Table of contents
e1476.doc
© Copyright by Siemens Building Technologies AG Cerberus Division, CH-8708 Männedorf, Switzerland 1999
Data and design subject to change without notice. Supply subject to availability
03.99 I [14]
Cerberus Division
1 Introduction
Introduction
The GW-23 interfaces both the peripheral control units and a virtual digital I/O subsystem to a structured network such as:
• X.25 via X.28 asynchronous RS-232 PAD
• X.25 via ISDN channel D and asynchronous RS-232 terminal adapter
• Ethernet TCP/IP protocol
Also, a dial-up, switched modem connection is supported as backup of any of the
above listed solution.
The GW-23 gateway is composed by one CPU board, one optional ethernet adapter
and one optional I/O board. The gateway is then installed on a connection board,
where the serial and I/O connections are made available.
Each GW-23 can manage up to
4 serial lines;
1 ethernet 10baseT connection;
up to 16 digital inputs and 8 digital outputs
Note: The optional I/O espansion is supported only with special version of manage-
ment station software; this board is not documented in this edition of the GW23 technical manual.
The four serial lines can be connected to
one RS-232 adapter for X.28 or ISDN-D;
one full modem;
two to Cerberus control units, supporting Cerban protocol
e1476.doc
Fig. 1-1 : GW-23
© Copyright by Siemens Building Technologies AG Cerberus Division, CH-8708 Männedorf, Switzerland 1999
Data and design subject to change without notice. Supply subject to availability
03.99 1 [14]
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