Installation Manual
iSiteC BTS3601C CDMA Base Station
Hardware Installation
2
Installing Cabinet Hardware
2-52
2.5.2 Networking of AC Lightning Protection Box
I. Plan without the IABB
Figure 2-50 shows the connection between the BTS3601C and an independent AC
lightning protection box.
220VAC
BTS3601C 220VAC input cable
BTS3601C
AC lightning protection box
A pair of fiber cables or E1 cable
Grounding cable
Figure 2-50
Networking of AC lightning protection box (20kA, without the IABB)
&
Note:
In terms of its discharging currents, the AC lightning protection box can be classified into three types: 20kA,
40kA and 100kA. All boxes mentioned in the chapter are of 20kA.
Three cables are used for the external connection of the AC lightning protection box:
1)
External power supply input cable
It is a twin-core cable (L, N). When AC power is led into the box via this cable, the live
wire is connected to the "L" end and the neutral wire to the "N" end.
The cable is provided by user and the ends of the cable can be distinguished via a
multimeter, i.e. the one with lower voltage is "N" end, and the higher one is "L" end.
2)
Cable connecting the box to the BTS3601C
It is a complete three-core cable (L, N, and PE). The port at BTS3601C side is a round
waterproof connector which has been installed during the instllation of major equipment.
The output interface of the lightning protection box is an air switch. When connecting
