GE GFK-2251 Benutzerhandbuch
4-8
Panel C Industrial Computer Hardware User's Manual
– May 2003
GFK-2251
4
a45528
Strip wire
to expose
shield.
User-provided clamp
Figure 4-4. Cable Cover Shielding
Ethernet Communication Port
The Panel C provides an RJ-45 (10BaseT/100BaseT) Ethernet connector on the left side of the unit.
The RJ-45 twisted pair connector is an 8-pin MAU MDI connector.
The RJ-45 twisted pair connector is an 8-pin MAU MDI connector.
1 2 3 4 5 6 7 8
Pin No.
Signal
Description
1
TD+
Transmit Data +
2
TD-
Transmit Data –
3
RD+
Receive Data +
4
NC
no connection
5
NC
no connection
6
RD-
Receive Data –
7
NC
no connection
8
NC
no connection
Grounding
Ethernet cable must be shielded and grounded in order to maintain CE Mark compliance,
provide higher EMC immunity, and satisfy the requirements of IEC/EN61000-4-4,
IEC/EN61000-4-5, and ANSI C37.90a. The shield conductor should remain continuous to
the unit, and insulation should be removed only at the grounding point. The grounding
should be such that a 360-degree contact is made to the cable shield. Figure 4-4 shows
an example with the insulating cover of the cable stripped back.
provide higher EMC immunity, and satisfy the requirements of IEC/EN61000-4-4,
IEC/EN61000-4-5, and ANSI C37.90a. The shield conductor should remain continuous to
the unit, and insulation should be removed only at the grounding point. The grounding
should be such that a 360-degree contact is made to the cable shield. Figure 4-4 shows
an example with the insulating cover of the cable stripped back.
Alternate Grounding Method
An alternative to the user-provided clamp as described in the previous sections, is the
cable shield clamping assembly (IC697ACC736) available from GE Fanuc. This cable
shield clamping assembly provides a high frequency ground for shielded cables via a
ground plate and six cable clamps. Figure 4-5 shows the dimensions required for
mounting. The figure also shows a cable clamp.
cable shield clamping assembly (IC697ACC736) available from GE Fanuc. This cable
shield clamping assembly provides a high frequency ground for shielded cables via a
ground plate and six cable clamps. Figure 4-5 shows the dimensions required for
mounting. The figure also shows a cable clamp.