Precautions When Wiring Com Port; Gt01 (5 V Dc) - Panasonic GT32-R User Manual

3.4 Precautions when Wiring COM Port

Precautions are different depending on communication conditions. Arrange wirings according to the
following instructions.

3.4.1 GT01 (5 V DC)

RS232C type
Perform wiring and placement of the cable so that there is no impression of external noise on the cable
-
and no induction.
Use shielded wires for distribution cables.
-
(Recommended cable: AIGT8142 with one ferrite core)
It conforms to CE marking. As conditions, the following wiring is required.
-
1. Make the cable do three turns around a ferrite core.
(Recommended ferrite core: Seiwa Electric's E04RA190120080 or equivalent)
2. Perform grounding of the cable shield.
* Packaged with AIGT8142.
RS422 (RS485) type
There is no RS and CS (control lines).
-
Perform wiring and placement of the cable so that there is no impression of external noise on the cable
-
and no induction.
Use shielded wires for distribution cables.
-
(Recommended cable: AIGT8152 with one ferrite core(Seiwa Electric's E04RA190120080))
When using shielded cable with crossover wiring for the RS485 transmission line, grounded one end.
-
"E" is used to set the terminating station.
-
It does not conform to European EMC directive.
-
Key Point:
The CE marking standards that the GT01 conforms to (excluding the RS422 (RS485) type)
European EMC directive 2004/108/EC
European EMC standards (EN61000-6-4 and EN61000-6-2)
3-14