RuggedCom RSG2300 - Manual (Page 23)

3. Installation
RuggedCom® RuggedSwitch® 23 RSG2300 Installation Guide Rev 110
twisted-pair cabling. For wiring guidelines, system designers and integrators should refer to the
Telecommunications Industry Association (TIA) TIA/EIA-568-A wiring standard that characterizes
minimum cabling performance specifications required for proper Gigabit Ethernet operation. To
ensure reliable, error-free data communication, new and pre-existing communication paths should
be verified for TIA/EIA-568-A compliance.
Table 3.5, “Cabling Categories And 1000Base-TX
Compliance” summarizes the relevant cabling standards.
Cabling Category
1000Base-
TX Compliant
Required Action
< 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 3.5. 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 3m (10') 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.
• Shielded/screened cabling can optionally be used. The cable shield should be grounded at one
single point to avoid the generation of ground loops.
3.2.7.4. Transient Suppression
RuggedCom does not recommend the use of copper cabling of any length for critical real-
time substation automation applications. However, transient suppression circuitry is present
on all copper ports to protect against damage from electrical transients and to ensure IEC
61850-3 and IEEE 1613 Class 1 conformance. This means that during the transient event,
communications errors or interruptions may occur but recovery is automatic. RuggedCom also
does not recommend using these ports to interface to field devices across distances which could
produce high levels of ground potential rise, (i.e. greater than 2500V) during line to ground fault
conditions.
3.2.8. Pluggable optics – Installation, removal, and precautions
The RS2000 series of products can be ordered with two pluggable optical form factors: SFP (Small
Form-factor Pluggable), and GBIC (GigaBit Interface Converter). SFP and GBIC modules can
be safely inserted and removed while the chassis is powered and operating – a feature also
referred to as “hot-swappable”. Nevertheless, when inserting or removing optics there are several
precautions that should be taken. They include:
• Ensuring that dust caps are mounted on SFP cages at all times unless a user is in the process
of inserting or removing an SFP module. The dust caps will prevent the accumulation of residue
or particles that might inhibit proper operation.
• Ensuring that the user has properly discharged any possible electrostatic build-up in order to
prevent electrostatic discharges (ESD). This can be accomplished by properly grounding via
an ESD wrist strap, or by touching earth or chassis ground before performing installation or