Ethernet communication port – GE Panel C GFK-2251 User Manual

Page 38

Advertising
background image

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.

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.

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.

Advertising