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1MRK514019-UEN A
6.6.2
6.6.3
670 series 2.0 IEC
Installation manual
IEC99001046 V1 EN
Figure 53:
Antenna line-of-sight
Electrical installation
Use a 50 ohm coaxial cable with a male TNC connector on the antenna end and a male
SMA connector on the receiver end to connect the antenna to the IED. Choose cable
type and length so that the total attenuation is max. 26 dB at 1.6 GHz. A suitable
antenna cable is supplied with the antenna.
The antenna has a female TNC connector to the antenna cable. For location of GPS
time module (GTM), refer to section
GTM is shown in figure 19.
Make sure that the antenna cable is not charged when connected to the
antenna or to the receiver. Short-circuit the end of the antenna cable
with some metal device, then connect to the antenna. When the
antenna is connected to the cable, connect the cable to the receiver.
The IED must be switched off when the antenna cable is connected.
Lightning protection
The antenna should be mounted with adequate lightning protection, that is the antenna
mast must not rise above a neighboring lightning conductor.
A
"Rear side
connectors". Connection diagram for
Section 6
Connecting
99001046.vsd
81
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