Wiring
akYtec GmbH · Vahrenwalder Str. 269 A · 30179 Hannover · Germany · Tel.: +49 (0) 511 16 59 672-0 · www.akytec.de
10
5 Wiring
WARNING
Dangerous voltage
Electric shock could kill or seriously injure.
All electrical connections must be performed by a fully qualified electrician.
Ensure that the mains voltage matches the voltage marked on the nameplate!
Ensure that the device is provided with its own power supply line and electric fuse!
WARNING
Switch on the power supply only after wiring of the device has been completed.
– The pin assignments are shown in Appendix B.
– The maximum conductor cross-section for power supply is 1.5 mm
2
.
►
NOTICE
Ensure that the functional ground (FE) is connected to the appropriate pin of the power sup-
ply terminal block (see Table B.1). Functional grounding is required to meet EMC level im-
munity.
►
NOTICE
The device is not provided with an On/Off switch. If the external switch is not installed, the
device will start up (boot) as soon as it is connected to the power supply.
5.1.1 Signal lines
►
NOTICE
Signal cables should be routed separately or screened from the supply cables.
►
NOTICE
Only a shielded cable may be used for signal lines.
A twisted pair cable should be used to connect an external device to the RS232 / RS485
interface. The cable lengths should not be exceeded:
– RS485 – 1200 m
– RS232 – see table 4.1
Table 5.1 RS232 connection cable length
max. baud rate
max. length
2.400
900 m
4.800
300 m
9.600
152 m
19.200
15 m
57.600
5 m
115.200
2 m
5.1.2 Ethernet
Use a CAT5 shielded twisted pair cable (STP) to connect device to Ethernet.
– Connection of one device to another: crossover cable
– Connecting to the hub / switch: 1:1 patch cable
– Maximum cable length: 100 m.