Dms7000 Network Structures; Transmission Links; Transmission Modes - Siemens MK7000 Manual

1

DMS7000 Network Structures

1.1

Transmission Links

1.2

Transmission Modes

Building Technologies
Fire Safety & Security Products
A communication network consists of transmission links between the Control Units
and the DMS 7000 Control Centre. Several transmission types are available.
ü
Communication network CERBAN
Point-to-point connection between Control Units and Danger Management Sy-
stem.
ü
Communication network CERLOOP
All network members connected directly to a common bus.
ü
Communication network CERTER
Normally restricted to serial interface connections to printers or interfaces be-
ween Central Processor and System Console.
Various types of modem are available and selection criteria include the required
transmission distance, the baud rate and local telephone authority regulations.
ü
V24/28 Modem (RS232) [signal level converter]
Single or dual Modems for 4-wire connections up to 1000m depending on the
application: may be used in CERBAN, CERLOOP or CERTER.
ü
FSK/PSK/QAM Modem
Single or dual Modems for 2-wire connections up to 10'000m depending on the
application: may be used in CERBAN or CERLOOP. The modems must be
programmed for the specific application (DIL-switches).
The following tables provide an overview over the various modem types, sho-
wing relevant applications and intercompatibility between individual mo-
dems.
(star connections)
(ring connections)
(star connections)
1
e1062i
10.2008