Front view
A Reset button
A brief press of the button will reset the device.
Holding the reset button pressed in for approximately
10 seconds will reset the device and restore the factory
default settings when the button is released.
B EXT.
USB interface solely for flash memory sticks (not supplied)
C Green and red LEDs
for device status display
D Green LEDs
(1...4)
I/O status display
E I/O 1&2
(6 pin screw terminal block plug)
Pin Description
1
Output Relay 1
2
Common Relay 1&2
3
Output Relay 2
4
Input 1
5
Ground (-) Input 1&2
6
Input 2
F I/O 3&4
(6 pin screw terminal block plug)
Pin Description
1
Output Relay 3
2
Common Relay 3&4
3
Output Relay 4
4
Input 3
5
Ground (-) Input 3&4
6
Input 4
K RS-485 bus
(4 pin screw terminal block plug)
Pin Description
1
485 B
2
Reference *
3
485 A
4
Shield
*The reference pinis connected via 100 Ohm to the internal
ground.
Rear view
G Analog audio In & Out
(DSub 9 pin female)
Pin Description
1
Left Out+ [Hot]
2
Left Out- [Cold]
3
Ground [G]
4
Right In+ [Hot]
5
Right In- [Cold]
6
Right Out+ [Hot]
7
Right Out- [Cold]
8
Left In+ [Hot]
9
Left In- [Cold]
H RS-232 serial port
(DSub 9 pin male)
Pin Description
1,6,9
Not connected
2
Receive Data [RxD]
3
Transmit Data [TxD]
4
V+ 14.6V, 100mA max
5
Ground [GND]
7
Ready to Send [RTS]
8
Clear to Send [CTS]
I
LAN port 10/100
(RJ45 Ethernet socket)
Pin Description
1
Tx +
2
Tx -
3
Rx +
4,5,7,8 Not connected
6
Rx -
J
LAN status LEDs
Green LED for Link, yellow LED for Activity
L Power
(8 Watt max.)
Pin Description
1
Vin -
2
Vin+ 24..48VDC ±20%
D
B
A
C
F
H
G
I
E
K L
J
