
Expansion units for SecuriFire 2000
60 / 128
Mounting and installation, Technical Description, T 811 086 en e
6.23
External printer connection
Notice
External printers can be connected to the SecuriFire 2000 exclusively via X2 connections of the B4-USI that are
programmed to “Printer” operation mode. The printer must have an RS232 (or Centronics) interface.
6.23.1
External printer to RS232 interface
TX A-
D0
0
CTS A+
0
GND A
B -USI
4
0
A (X2)
5
8
13
Printer
DB 25
3
20
7
TXD
DTR
GND
max. 15m
TX A-
D0
0
CTS A+
0
GND A
B -USI
4
0
A (X2)
5
8
13
Printer
DB 9
4
2
5
DTR
RXD
GND
max. 15m
Fig. 80 External printer on RS232 interface
When connecting a printer via an RS232 interface to
the B4-USI, the max. distance between B4-USI and
printer is 15 m.
6.23.2
External parallel printer on RS422 interface with converter
When connecting a parallel printer via RS422 interface with a data converter W&T to the B4-USI4, the max. distance be-
tween B4-USI4 and converter is 1,200 m.
TxD0+
xD0-
T
xD0+
R
xD0-
R
GND0
3
B3-USI
0A
Plug
/0B
4
2
1
9
16
15
11
23
14
Data In B (+)
Data In A (-)
Hands. Out B (+)
Hands. Out A (-)
Signal GND
W&T Interface
RS422 > Centronics
Printer
C
e
n
tr
o
n
ic
s
D
B
1
5
=
230V
max. 1200 m
1
8
Fig. 81 External parallel printer on RS422 interface with converter
Connection cable
RS422 (USI) DB15 f
↔
W&T interface
TxD0+
Pin1
↔
Pin23
Data In B (+)
TxD0-
Pin2
↔
Pin11
Data In A (-)
RxD0+
Pin3
↔
Pin16
Handshake Out B (+)
RxD0-
Pin4
↔
Pin15
Handshake Out A (-)
GND
Pin9
↔
Pin14
Signal GND
Settings on the interface
DIP-Switch ON
→ S1, S3, S7, S8:
Baud rate 19200 baud,
8 data bit,
Parity=learnmode