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Operating instructions card reader AR6331-CP / AR6332-CP
Order no.: A24205-A335-H050
5.1.1 Power
supply
The power is supplied through terminals [+] and [-]. The unit can run off 12 Volt DC. For DC
voltage supply the polarity is fix!.
NOTE:
The length of cable between the power pack and the reader should be kept as
short as possible. The lead should not be laid directly parallel to other energy
supply and low voltage cables.
5.1.2 RS485
interface
With RS485 data buses, it can be necessary to use terminating resistors. For each
installation, checks should be made as to whether it is necessary to use terminating
resistors. Generally, a terminating resistor is only required at the end of the bus, i.e. on the
last unit. In order to do this, use jumper J1 on reader electronic board.
To operate the bus, you need a central computer with a terminating resistor and active
termination (see Figure 5: Operating a bus with an RS485 interface)
Controller
Without terminating resistor
A
B
AR 6331-CP
AR 6331-CP
AR 6331-CP
100 Ohm
(with active terminationung)
With terminating resistor
A
B
Jumper J1
Figure 5: Operating a bus with an RS485 interface
5.2
Setting the address (bus operation)
5.2.1 Setting the adress within SIPORT systems (Controller DC2000)
Bus operation with up to 4 readers connected to controller DC2000. All card readers are
issued an individual address as shown in Table 2.
DIP 4
DIP 3
DIP 2
DIP 1
Bus adress
off off off off
0
off off off
on
1
off off
on
off 2
off off
on on
3
Table 2: Bus addresses within SIPORT
