Fire Safety & Security Products
Building Technologies
e1062i
5
10.2008
2.4
Transmission Equipment
The following specifications and parameter definitions provide the necessary
background information for project engineers and service technicians working with
DMS7000 Danger Management Systems
2.4.1
CCITT-specifications
Equipment connections are based on the CCITT-V24 recommendations which
include all possible interface lines together with their functional descriptions.
However they do not specify which connections should be used for specific
applications.
In comparison with the CCITT-V24 recommendations, the CERBERUS
V24-interface has been greatly simplified, using only 7 of the recommended 22
connections.
Foreign modems which fulfill the following specification may also be used:
asynchronous full duplex
standard data transmission rate of 300, 600, 1200, 2400, 4800, 9600 Baud.
(Note: conversion to TTL-level via CERBERUS-Modem necessary)
Modem Header (TTL-Level!)
K1D 010
K1D 011
K1D 080
K1D 090
K1D 120
K1D 080
K1D 120
K1D 012
K1D 140
K1D 081
K1D 121
K1D 081
PIN A1
A2
A1/2
A1/2
A2
1
+5V
DC
+5V
DC
+5V
DC
+5V
DC
+5V
DC
2
NC
NC
NC
NC
NC
3
TxD1
TxD2
TxD1
TxD1
TxD2
Transmit Data
4
RxD1
RxD2
RxD1
RxD1
RxD2
Receive Data
5
RTS1
RTS2
NC
RTS1
NC
Clear Watch-Dog
6
NC
NC
NC
NC
NC
7
GND
GND
GND
GND
GND
8
NC
NC
+5V
DC
+5V
DC
NC
9
DCD
DCD
NC
NC
10
NC
NC
TxD2
NC
Transmit Data
11
NC
NC
RxD2
NC
Receive Data
12
NC
NC
RTS2
NC
Ready to Send
13
CTS1
CTS2
NC
NC
Clear to Send
14
NC
NC
GND
NC