
Expansion units for SecuriFire 2000
56 / 128
Mounting and installation, Technical Description, T 811 086 en e
6.20
Connection to management and third-party systems (non-redundant)
6.20.1
Connecting management system / ESPA to RS232 interface
This connection is optionally available as a cable. When connecting the management system / ESPA via an RS232 interface
to the B4-USI, the max. distance between B4-USI and PC is 15 m.
TX A-
D0
RxD0 -
A
0
GND A
B -USI
4
Plug A (X2)
0
DB15
5
7
13
Management
system/ESPA
PC / COM X
DB9
2
3
5
RD
TD
GND
Fig. 74 Connecting management system to RS232 interface
6.20.2
Connecting management system /ESPA via converter
max. 15 m
RxD0+
RxD0-
TxD0+
TxD0-
GND0
3
B -USI
4
0
A (X2)
TxD
RxD
GND
2
3
5
PC
DB
Plug 9
SW1
SW2
DATA +
DATA -
N.C.
N.C.
TX +
TX -
RX +
RX -
+ Vs
GND
1
1 2
10
Set to:
RS422 (SW 2/10 on)
11 ata bit (SW 1/2 on)
d s
DB9
RS232
VExt
max. 1.200 m
GNDExt
B -PSU
6
2
3
5
ADAM 4520
4
2
1
9
Fig. 75 Connecting management system / ESPA via converter