Gnss Module (Ncs4216-Cm-Gnss); Gnss Module Rf Input Requirements - Cisco NCS 4216 Manual

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Cisco NCS 4216 Overview

Vibration

Shock

Nonoperating Vibration

Operating Acoustics

GNSS Module (NCS4216-CM-GNSS)

The GNSS module is present on the RSP. It is a pluggable module that allows direct interface with the external

antenna.

Note

Using a single GPS antenna input for both RSPs requires usage of external splitters.

To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord. Statement 1023

Warning

Note

The GNSS module is not hot swappable.

• The GNSS module requires an active GPS/GNSS antenna with built-in Low-Noise Amplifier (LNA)

The Amplification required is 22dB gain + cable/connector loss + Splitter signal loss.

The recommended range of LNA gain (LNA gain minus all cable and connector losses) at the connector of

the receiver module is 22dB to 30dB with a minimum of 20dB and a maximum of 35dB.

• GNSS module provides 5V to the active antenna through the same RF input.

• Surge requirement:

GNSS modules have built-in ESD protections on all pins, including the RF-input pin. However, additional

surge protection may be required if rooftop antennas are being connected, to meet the regulations and standards

for lightning protection in the countries where the end-product is installed.

for optimal performance. The antenna LNA amplifies the received satellite signals for two purposes:

◦ Compensation of losses on the cable

◦ Lifting the signal amplitude in the suitable range for the receiver frontend

1.0 g from 1.0 to 150 Hz

30 G half sine 6 ms and 11 ms

Random: 1.15 g RMS 3 to 200 Hz, 30 minutes/axis

Sine: 10 to 500 Hz at 0.8 G peak / 5 sweep cycles/axis

< 76 dBA at 27ºC as per NEBS standard GR-63

Cisco NCS 4216 Hardware Installation Guide

GNSS Module (NCS4216-CM-GNSS)

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