Siemens SIMATIC NET Посібник з монтажу - Сторінка 19

Installing the Device

2.4.1 Connecting AC Power

Note

•

Note

Siemens requires the use of external surge protection in VDSL applications where the

line may be subject to surges greater than that for which the device is rated. Use the

following specifications as a guide for VDSL external surge protection:

•

2.4.1

Connecting AC Power

To connect a high AC power supply to the device, do the following:

Electrical hazard – risk of damage to equipment

Before testing the dielectric strength (HIPOT) in the field, remove the braided

ground cable connected to the surge ground terminal and chassis ground. This cable

connects transient suppression circuitry to chassis ground and must be removed to

avoid damage to transient suppression circuitry during testing.

For 110/230 VAC rated equipment, an appropriately rated AC circuit breaker

must be installed.

For 125/250 VDC rated equipment, an appropriately rated DC circuit breaker

must be installed.

Use minimum #16 gage copper wiring when connecting terminal blocks.

Equipment must be installed according to applicable local wiring codes and

standards.

All line-to-ground transient energy is shunted to the Surge Ground terminal. In

cases where users require the inputs to be isolated from ground, remove the

ground braid between Surge and Chassis Ground. Note that all line-to-ground

transient protection circuitry will be disabled.

Clamping Voltage: 50 V to 200 V

Insertion Loss: < 0.1 dB at 10 MHz

Peak Surge Current: 10 kA, 8x20µs waveform

NOTICE

RUGGEDCOM RMC30

Installation Manual, 04/2021, C79000-G8976-1008-10