TFortis SG-Cam lightning protection for video cameras

Documentation

Manual TFortis SG-Cam

TFortis SG-Cam is a lightning protection device designed to protect cameras through the Ethernet port from strong interferences induced by powerful lightning discharges.

It is recommended to use TFortis SG-Cam in conjunction with a lightning protection device for TFortis SG-Switch.

Figure 1. Typical application scheme

Features

High level of protection against lightning interferences.
All-weather performance (IP67 enclosure).
Operation in a wide range of temperatures (from -55°C to 80°C).
The camera cable is located inside the lightning protection enclosure.
A bracket for mounting on the pole or on the wall.
Supports Fast/Gigabit Ethernet.
Supports PoE/PoE+ (IEEE802.3af/at), including PoE 60W.
Convenient visual control of the integrity of components.

SG-Cam device has a metal enclosure protected from dust and moisture according to IP67. The device has a cable gland with a rubber sleeve for three cables:

Ethernet cable from the switch,
Ethernet cable of the video camera,
grounding cable.

There is enough space inside SG-Cam to accommodate the excess cable coming from the video camera.

Using a single large cable gland with a dedicated rubber sleeve allows the RJ45 socket of the camera to be inserted into the lightning protection device without cutting off the camera socket, thus retaining the warranty of the camera manufacturer.

General features
Power supply		IEEE802.3af/at (up to 60W)
Data transfer type		10/100/1000Base-T
Degree of protection from dust and moisture		IP67
Operating temperature, °C		-55...+80
Dimensions, mm		220mmx20mmx90mm
Weight, kg		< 2

Characteristics according to standard GOST IEC 61643-21 - 201
Protected pairs		(1-2), (3-6), (4-5), (7-8)	(1,2-3,6), (4,5-7,8)
Nominal operating voltage, DC	UРѕ	6V	48V
Maximum continuous operating voltage, DC	UСЃ	9V	57V
Nominal current (direct)	IL		600mA+600mA
line-ground
C2 Nominal discharge current (8/20)	In	1 kA
(C2 - 2 kV/1 kA) Protection voltage level at In	Up	< 450 V
C3 Protection voltage level at 1 kV/Ојs	Up	< 600 V
Actuation time	tA	< 100 ns
Stray capacitance	C	< 1 pF
line-line
Protected pairs		(1-2), (3-6), (4-5), (7-8)	(1,2-3,6), (4,5-7,8)
C2 Nominal discharge current (8/20)	In	200 Рђ	200 Рђ
C2 Nominal discharge current (8/20)	Up	< 15 V	< 75 V
C2 Nominal discharge current (8/20)	Up	< 20 V	< 85 V
Actuation time	tA	< 1 ns	< 1 ns
Stray capacitance	C	< 25 pF	< 25 pF

Bandwidth		250 MHz
Input losses		< 35 dB (up to 250 MHz)
Crosstalk at the transmitting end		< 35 dB (up to 250 MHz)

Certificate TFortis SG

Validity:

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