5.3.3.1
Door contact switch "RJ12 plug"
The door contact input "5" (Fig. 28 /5) is designed for switch type Rittal 7320.530
(Fig. 30 /2 or 3). Connect door contact switches of variant "RJ12 plug" to the door
contact input "5". Make the connection as per Fig. 29 and Fig. 30 .
INFORMATION
The total length of the RJ12 connecting cables (AWG 26) which are used must not
exceed 30 m.
Fig. 29: Installation diagram for the door contact switch "RJ12 plug" (access sensor)
1
Door contact input "5" (Fig. 28 /5)
2
Door contact switch "RJ12 plug"
X1 RJ12 socket (6-pole) for connecting to the system or for series connection with
a further door contact switch
X2 RJ12 socket (6-pole) for series connection with further door contact switches
(maximum 10 switches) or for the RJ12 plug "terminating resistor"
3
RJ12 plug "terminating resistor"
Consider when connecting the RJ12 plug "terminating resistor" (Fig. 30 /1) that with
older grey door contact switches (Fig. 30 /3) a different terminating resistor is
required to that needed for transparent door contact switches (Fig. 30 /2):
● Grey door contact switch: terminating resistor = 22 k
Ω
● Transparent door contact switch: terminating resistor = 1 k
Ω
INFORMATION
The pre-mounted terminating resistor (Fig. 28 /13) must be removed when using
the switch "Rittal 7320.530".
On the control card CPU3 at DIP switch "S3" (Fig. 31 /2), move slide switches "6"
and "7" depending on the type of switch (grey/transparent):
Fig. 30: Door contact switch and termi-
nating resistor (RJ12)
Mounting and installation
Operating Instructions / DET-AC III Slave / 916007 / 05-2016 / en_US
42
