background image

 

 

Fig. 3. The view of the switch. 

 

Table 2. (See Fig.3) 

Component No 

(Fig. 3) 

Description 

[1] 

8 x PoE ports (1

÷8) 

[2] 

2 x UPLINK port  

[3] 

52V DC power supply socket 

 

1.4  Technical parameters 

- parameters of the switch (tab.3) 
- electrical parameters (tab.4) 
- mechanical parameters

 

(tab.5) 

- operation safety (tab.6) 
- operating parameters (tab.7) 

 

Table 3.  Parameters of the switch 

Ports 

10 ports 10/100/1000 Mb/s (8 x PoE + 2 x UpLink)                                                       

              with connection speed auto-negotiation and MDI/MDIX Auto Cross) 

PoE power supply 

IEEE 802.3af/at (1

÷8 ports),  52V DC / 30W at each port  * 

Used pairs  4/5 (+), 7/8 (-) 

Protocols, Standards 

IEEE802.3, 802.3u, 802.3x  CSMA/CD, TCP/IP 

Bandwidth 

16Gbps 

Transmission method 

Store-and-Forward 

Optical indication of 
operation 

Switch power supply; 

Link/Act; 

PoE Status 

*

 

The given value of 30W per port is the maximum value. The total power consumption should not exceed 120W when all PoE ports are being used. 

 

Table 4. Electrical parameters

 

Mains supply 

AC 176÷264V/50Hz 

Current up to 

1,3A/230V AC max. 

Supply power 

208W  

Output current at the PoE ports (RJ45)

 

8 x 0,6A 

ΣI=2,3A (max.) 

Output voltage at the PoE ports (RJ45)

 

52VDC  

Output current (recorder)

 

5A 

Output voltage (recorder)

 

12VDC 

Short-circuit protection SCP and overload protection OLP 

105% ÷ 150% of power supply, manual restart 

 (the fault requires disconnection of the DC output circuit) 

PSU current consumption 

300mA / 27,6V 

Battery charge current

 

1A max.  / 2x17Ah (+/-5%) 

Approximate backup time 

3h 15min 

Battery circuit protection SCP and reverse  
polarity connection 

melting fuse 

Summary of Contents for SG108-CRB

Page 1: ...with space for two 17Ah 12V battery and offers the possibility of recorder installation The enclosure construction is compliant with the requirements of the General Data Protection Regulation GDPR the...

Page 2: ...The electricity consumption for own needs and the energy efficiency of the power intake track were taken into account The exact description of how to perform the calculations can be found at Approxima...

Page 3: ...nverter 4 DC DC50SD converter 5 Output filter 6 Tamper micro switch terminals of tamper protection NC 7 Battery space for two 2 x 17Ah 12V connect the batteries in series 8 Space for a recorder 380x32...

Page 4: ...od Store and Forward Optical indication of operation Switch power supply Link Act PoE Status The given value of 30W per port is the maximum value The total power consumption should not exceed 120W whe...

Page 5: ...nd output circuits of the PSU I P O P between input circuit and PE protection circuit I P FG between output circuit and PE protection circuit O P FG 3000 V AC min 1500 V AC min 500 V AC min Insulation...

Page 6: ...clips of the PSU The shock protection circuit shall be performed with a particular care i e the yellow and green wire coat of the power cable shall stick to one side of the terminal marked with symbo...

Page 7: ...F THE PoE SWITCH s 1 8 GREEN LED LIGHT PoE Indication of the PoE power supply at the RJ45 ports OFF no power supply at the RJ45 port the device is not connected or not compliant with the IEEE802 3af a...

Page 8: ...the disconnection of the PSU from the power supply network The PSU does not require performing any specific maintenance measures however in case of significant dust rate its interior is recommended to...

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