Siemens RUGGEDCOM RS950G, Installation Manual

Page: 20 / 42

Chapter 2
Installing the Device
RUGGEDCOM RS950G
Installation Guide
10 Connecting Power
NOTE
Control of the failsafe relay output is configurable through ROS. One common application for this relay
is to signal an alarm if a power failure occurs. For more information, refer to the ROS User Guide for
the RUGGEDCOM RS950G.
The following shows the proper relay connections.
2 3 1
Figure 6: Failsafe Alarm Relay Wiring
1. Normally Open 2. Common 3. Normally Closed
Section 2.3
Connecting Power
The RUGGEDCOM RS950G supports a single integrated high AC/DC or low DC power supply
IMPORTANT!
• 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 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.
IMPORTANT!
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:
• Clamping Voltage: 50 V to 200 V
• Insertion Loss: < 0.1 dB at 10 MHz
• Peak Surge Current: 10 kA, 8x20µs waveform
CONTENTS
• Section 2.3.1, “Connecting High AC/DC Power”