RuggedCom RX1512 manual Transient Suppression, Cabling Category 1000Base Required Action

3. Installation

Cabling Category	1000Base-	Required Action
	TX Compliant
< 5	No	New wiring infrastructure required.
5	Yes	Verify TIA/EIA-568-A compliance.
5e	Yes	No action required. New installations should be designed with Category 5e or higher.
6	Yes	No action required.
> 6	Yes	Connector and wiring standards to be determined.

Table 3.4. Cabling Categories and 1000Base-TX Compliance

Follow these recommendations for copper data cabling in high electrical noise environments:

•Data cable lengths should be as short as possible, ideally limited to 10' (3m) in length. Copper data cables should not be used for inter-building communications.

•Power and data cables should not be run in parallel for long distances, and should be installed in separate conduits. Power and data cables should intersect at 90° angles when necessary to reduce inductive coupling.

•Optionally, shielded/screened cabling can be used. The cable shield should be grounded at one single point to avoid the generation of ground loops.

3.7.3.Transient Suppression

All copper Ethernet ports on RuggedCom products include transient suppression circuitry to protect against damage from electrical transients and to ensure conformance to IEC 61850-3 and IEEE 1613 Class 1. This means that during a transient electrical event, it is possible for communications errors or interruptions to occur, but recovery is automatic.

RuggedCom does not recommend the use of copper cabling of any length for critical, real-time, substation automation applications.

RuggedCom also recommends against the use of copper Ethernet connections to interface to devices in the field across distances which could produce high levels of ground potential rise (that is, greater than 2500V), during line-to-ground fault conditions.

RuggedCom® RuggedBackbone™ 24 RX1512 Installation Guide Rev 105