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videosurveillance systems

Jiading District, Shanghai, China.  Bo Yuan Rd., No1333, Room1618  (Post code 201800)
Tel: 021-60192179, FAX : 021-60192180
Hotline: 4000 2131 33
 
Solution (ENG)

We would be pleased to work with you in a close cooperation

and adapt the manufacturing articles to the market needs.

PoDSL

PoDSL PoDSL

PoDSL technology to connect and power the IP cameras for long distances.

 

SHDSL G.shdsl, ITU G.991.2 - one of the xDSL technology, provides a symmetrical two-way data transmission over a pair of copper wires. When using the coding methods TC-PAM128, it became possible to increase the speed up to 15.2 Mbit / s over a single pair. To power the SHDSL devices we used a constant voltage 240V on the signal line. This allows to power the camera with a modem at the distance of 8 kilometers and receive video at 1Mbps / c, for twisted pair cross-section 0.5mm.  Power over DSL is a technology for power SHDSL devices via the signal line.

 

Table line speed versus distance for a bunch of modem SG-17B-261 and camera SG-1C-111, powering over PoDSL from module MS-17H4P2.

Distance, Km

Power consumption, W

Line speed, Kbit/s

0

 8.6

 14080

1

 8.8

 14080

2

 9.0

 10240

3

 9.3

 7168

4

 9.6

 4608

5

 9.7

 3072

6

 9.9 

 2304

7

 10.3

 1536

8

 10.5

 1024

 

Table line speed versus distance for a bunch of modem SG-17B-261 and camera SG-1C-121, powering over PoDSL from module MS-17H4P2.

Distance, Km

Power consumption, W

Line speed, Kbit/s

0

 9.7

 14080

1

 9.9

 14080

2

 10.2

 10240

3

 10.4

 7168

4

 10.7

 4608

5

 11.1

 3072

6

 11.7

 2304

7

 12.4

 1536

 

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Latest News

Support long range serial POE devices via "PoE Through Technology" up to: 4 x POE Ethernet10/100M self-adaptive, each port with standard 4 wire PoE power + max 60W; 2 x 10/100/1000BASE-T/SFP fiber ports,transceive IP packet data upto 80Km; 2 x 10/100/1000BASE RJ45 Ethernet port; 1 x RS232. Total power: 220VAC / 240W.

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