Appendix Deutschmann
Automation GmbH & Co. KG
46
Instruction manual UNIGATE
®
IC - Powerlink V. 2.3
21.4.15
SW3, SW4
These switches are required for the setting of the serial interface. The switch SW3 is used to
switch between interface RS232 and RS485. This is the interface, the customer’s device is con-
nected to. The Debug-interface always has RS232-level.
The switch SW4 is of importance only, when it is an RS485-interface. Then this switch can be
used to connect the termination of the RS485-bus.
Each switch position can be taken from the illustration.
D12
Power LED
This LED is always supposed to be shining statically green when the board is supplied with volt-
age.
D9, D15..D18, D20
LEDs that are connected to the shift register components.
D19
LED LINKACT
This LED is directly controlled by the processor and shines when the gateway is in an operable
network (link-pulses are received) and it flickers when network data traffic takes place.
16.2.2
Connectors of the basis board
16.2.2.1
Connector to the external device (RS-interface)
The connection cable to the external device must be plugged in at the connector accessible on
the underside of the device.
Pin assignment P7 (9-pin Sub-D, plug)
Pin No.
Name
Function
1
2
Rx/RS485- / RS422- (Tx)
Receive signal customer’s device
3
Tx/RS485+ / RS422+ (Tx)
Transmit signal customer’s device
4
Tx / Diag
Transmit signal Debug interface
5
GND RS
Ground connection, reference for PIN 2+3+6+7
6
RS422- (Rx)
7
RS422+ (Rx)
8
Not connected
Not connected
9
Rx / Diag
Receive signal Debug interface