Wirnet iBTS
Document title : Installation and
Maintenance Manual
Version : 2.0
Author : SNI
Date : 04/12/2018
Classification
This document is the strict property of Kerlink and shall not be either copied nor sent without express
written authorization of Kerlink
Internal Use
Kerlink m2m technologies reserved rights
Confidential
Kerlink – 1 rue Jacqueline Auriol – 35235 THORIGNÉ-FOUILLARD
Page 162 / 221
Strict confidential
4.3.2
Mains supply
The mains supply is not injected directly into the Wirnet iBTS but into the PoE injector.
The mains supply must be an indoor installation composed of:
A main electrical board including:
o
a circuit breaker
o
a surge protection type 1
o
a connection to “earth”
A secondary electrical board including:
o
a circuit breaker
o
a surge protection type 2
o
a connection to “earth”
Surge protections type 1 and 2 are required to protect the PoE injector.
Note:
in case surge protections type 1 and 2 are not available, specific PoE injectors for
outdoor applications are required (see § 4.3.3).
4.3.3
POE supply
The Wirnet iBTS gateway is supplied by a PoE injector through an Ethernet cable.
The PoE injectors are detailed in §1.6.1.1 and §1.6.1.3.
The recommended Ethernet cable is detailed in §1.8.4.1. It includes two RJ45 T 568A plugs
on each side
Note 1:
The Ethernet cable is not provided with the Wirnet iBTS.
Note 2:
The maximum Ethernet cable length is 100m.
Note 3:
The PoE injectors are considered as limited power sources
The installation of the PoE cable is detailed in §4.6.3.
4.3.4
Auxiliary power supply
The Wirnet iBTS can be also supplied with an auxiliary DC power supply as a solar panel for
instance. The input voltage range is 11 to 56VDC. A 24V DC solar system is then
recommended for optimized performance.
The power supply must be qualified as a limited power source.
The maximum power is 30W.
The nominal current for a 24V power supply is about 1.2A in the following configuration:
HSPA in a network attached mode
4 LoRa LOC modules / all demodulators activated
20% CPU load
A two-wires cable is required to interconnect the auxiliary power supply connector.
The installation of the cable is detailed in §4.6.5.
