Siemens FC700A - Wiring, Key Data, and Connections

E3I020 RS232 module
49
Siemens Building Technologies 007831_a_en_--.doc
Fire & Security Products 03.2004
12.3 Wiring principle
F20A020
1
20
Mounting accessories Z1B020
E3I020
E3I020
PrinterRS232-1
ModemRS232-2
PrinterRS232-1
Modem
RS232-2
FC700A
B3Q700 (CPU)
FT700A
B3Q700
F20A140
Housing H28
Plug-in terminals from Z1B020
1
12
Housing H38
ST1
ST2
ST1
ST2
X3
ST2
12.4 Key data
Operating voltage 5V from B3Q700 via flat cable F20A...
Quiescent current increase B3Q700 when operat-
ing one E3I020
25mA (increase on 24V-side)
12.5 Connections
(Printer)
E3I020
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Module chassis
unused
(transmit) TXD1
(transmit) TXD2
(receive) RXD1
(receive) RXD2
(ground 1) 0V1
(ground 2) 0V2
RTS2
CTS2
TCLK2
RCLK2
CD2
RS232-1
RS232-2
12
11
10
9
8
7
6
5
4
3
2
1
Connector ST2
(SWE700A)
Terminal block X3
extended
functions
(connect to chassis
ground)
1
14
1
6
RXD
GND
Sub-D connector
(DB9) with cable
or
Modem
Depending on type of modem the signals 'RTS/CTS' must not be wired
CTS
RTS
TXD
Sub-D connector
(DB25) with cable
5
8
7
2
3
e.g. printer
RXD
GND
CTS
RTS
TXD
7
5
4
3
2