10/100M 12 Port POE Patch Panel Passive Injector With RJ45 ZQ-POE-I012-1U
10/100M 12 Port POE Patch Panel Passive Injector With RJ45
(ZQ-POE-12-1U)
Features
1.USE 10/100M passive Ethernet;
2.Flexible power (DC 24V TO 57V);
3.Each Port Current Protection (650mA+/-15%);
4.Built-in LED Indicator;
5.For 19’’ Rack
6.1 year warranty
Overview
*Passive and 802.3af POE uses pins 4/5 for plus power, and 7/8 for ground.
*Many popular devices like Ubiquiti use this method to centralize the power source -you can go for 328 ft with a 24v supply to a typical Access Point.
*Connect the power supply you need (24v for Ubiquiti, 48v for 802.3at or 802.3af) and reduce
the mess of cables. Reboot all 12 devices from one central location.
1.Passive POE is composed of 12 set of Rj45 sockets
2.The input dc hole diameter is 2.5mm and the other end OD id 5.5mm.
Details
1.Panel 12 integrating passive POE injector suitable for powering up to 12 devices.
2.The RJ45 connectors on one side are connected Ethernet ports with no power (switch) on theopposite side of the device used to connect power for Ethernet cable.
3.Are used to power the two unused pairs of the Ethernet cable.
4.Power couples: 4,5 (positive pole) / 7,8 (negative pole)
Applications
(1)Remote routers, access points and bridges
(2)Remote networking equipment
(3)SOHO equipment
(4)IP phone systems etc
The poe injector does not include the power supply.
The power supply is sold seperately.
Parameter
Input | 100-240V AC 50/60Hz |
Output | 48V 120W (Min) |
Power + Data out | 1/2&3/6&4/5&7/8 for data, 3/6+ & 1/2- (48V) for power |
Data In | Connects PC/HUB/Switch |
Data Rate | 10/100 Mbps |
Ethernet Cable | TIA/EIA 568 Cat.5 |
Connector | RJ-45 |
Operating Temperature | 0°C~40°C |
Storage Temperature | -40°C~70°C |
Operating Humidity | 10%~80%RH |
Storage Humidity | 5%~90%RH |
How PoE works
A device needs power to operate. Not volts or amps – power - expressed as watts. That power can be supplied at different voltages. The electronics inside the device needs usually about 3.3 or 5 volts. But at low voltages, the wires from power supply have a lot of loss beyond about 6 feet. So for short distance power, 5v Cameras are shipped with a 5v power supply and work for about 6 feet. But if you try to make a longer DC cord there is a lot of loss in the wire. With 24v or 48v on Ethernet – the loss is reduced by a factor of 25 or even 80.
Power Supply Mode A
Mode A shares power on the data pins 12 36. Standard 802.3af client devices support power either with Mode A or Mode B. But, sometimes only 2 of the 4 pairs of conductors in an Ethernet cable are connected – Mode A allows operation in this condition. Note – it does not matter if 568A and 568B or crossover cables are used.
Power Supply Mode B, Mixed operation
Mode B uses the unused RJ45 pins 45 and 78. All non-802.3af devices use Mode B. Since non-802.3af devices do not accept power on pins 12 36, in some cases (please test first!!) you can combine 48 volts on mode A with 24 volts on Mode B for dual power supply operation. OpenMesh for example is known to work this way.
Failover Mode A and B operation – 48 volt /802.3af
Standard 802.3af client devices support power either with Mode A or Mode B. If two power supplies with 48 volts are connected to this device, everything will operate if either of the power supplies is working. The LEDs on the front panel will indicate if each of the power supplies are active. This implements a failover solution.
Load balancing – 802.3af only – each device can accept power from mode A or mode B – causing the load to be shared between power supplies.
Devices with “12v, PoE” specifications
If the device shows “12v, PoE” on the data sheet – this means that the device uses 12v when powered from a transformer – and 48v when powered via Ethernet cable. It will not work if 12 volts is applied as PoE.
IP Phones need 48 volts
Aside from 6 very old Polycom phones, all IP Phones need 48v PoE. Please do not try to power an IP phone with 24 volt PoE – it will not power up.
We offer 56, 48, 24, 18 and 12 volt power supplies – if you need a power supply, please contact us freely.
VOIP phones, cameras and WiFi AP’s need from 3 to 15 watts each, with this injector, you can provide remote power up to 328 ft from the power source. If your device data sheet shows “48v 350ma” please understand that this is not the power your device needs, but the max power that is available according to the 802.3af spec. For example, a Polycom VOIP phone is 802.3af compatible, but needs about 4.5 watts to operate. Therefore, one 12 port injector and a 60 watt power supply can power 12 phones at low cost.
Shenzhen ZhangQing Electronic CO LTD
| Founded Year | 2010 |
| Located City | Shenzhen, China |
| Main Products | PoE switch/injector/adapter/splitter/tester, Power supply |
| Usage | Access Point, IP camera, VoIP phone, etc. |
| Main Market | West Europe, North America, etc. |
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