This article is specific to powering ePMP modules with a Power over Ethernet (PoE) power injector.
The ePMP power supply is an indoor unit that is connected to the ePMP module and network terminating equipment using Cat5e cable with RJ45 connectors. It is also plugged into an AC or DC power supply so that it can inject Power over Ethernet (PoE) into the module.
For powering ePMP modules, Cambium Networks has tested and recommends using the following 30 V PoE injectors:
Cambium description |
Cambium part number |
Pinout |
ePMP Power Supply for GPS Radio - no cord |
N000900L001A |
Pins 7,8: +30 V Pins 4,5: RETURN (Cambium PoE) |
ePMP Power Supply for non-GPS Radio - no cord |
N000900L002A |
Ensure that the voltage applied to the device meets the minimum range listed in the table below after taking into account cable lengths or any other type of voltage loss resident in your deployment.
ePMP module basic powering specifications:
ePMP Device |
ePMP Device PoE Input Protocol |
Input Voltage Range |
ePMP Connectorized with GPS Sync |
Compatible with: Cambium PoE pinouts (V+ = 7 & 8, Return = 4 & 5) and 802.3af PoE pinouts (V+ = 4 & 5, Return = 7 & 8) |
23 – 56 V |
ePMP Connectorized |
Compatible with Cambium PoE pinouts (V+ = 7 & 8, Return = 4 & 5) |
10 – 30 V |
ePMP Integrated |
Compatible with Cambium PoE pinouts (V+ = 7 & 8, Return = 4 & 5) |
10 – 30 V |
Force 110 PTP |
Compatible with Cambium PoE pinouts (V+ = 7 & 8, Return = 4 & 5) and 802.3af PoE pinouts (V+ = 4 & 5, Return = 7 & 8) |
23 – 56 V |
Force 110 |
Compatible with Cambium PoE pinouts (V+ = 7 & 8, Return = 4 & 5) |
10 – 30 V |
Force 180 |
Compatible with Cambium PoE pinouts (V+ = 7 & 8, Return = 4 & 5) and Proprietary PoE pinouts (V+ = 4 & 5, Return = 7 & 8) |
10 – 30 V |
Force 200 |
Compatible with Cambium PoE pinouts (V+ = 7 & 8, Return = 4 & 5) and Proprietary PoE pinouts (V+ = 4 & 5, Return = 7 & 8) |
10 – 30 V |
For each power supply, the maximum permitted drop cable length is specified in the table below:
Power supply drop cable length restrictions
Part number |
Description |
Maximum cable length (*1) |
N000900L001A |
Power Supply for Radio with Gigabit Ethernet (no cord) |
330 feet (100m) |
N000900L002A |
Power Supply for Radio with 100Mbit Ethernet (no cord) |
330 feet (100m) |
(*1) Maximum length of Ethernet cable from ePMP device to power supply
For copper connections from the device to the power supply, use Cat5e cable that is shielded with copper-plated steel.
Caution
Always use Cat5e cable that is shielded with copper-plated steel. Alternative types of Ethernet cables are not supported by Cambium Networks.
For information about powering ePMP by a Cambium Networks Cluster Management Module (CMM), see:
http://community.cambiumnetworks.com/t5/ePMP-Installation/Powering-ePMP-via-CMM/m-p/48920#U48920
For more information about powering ePMP in sub-freezing temperatures, see:
For ePMP installation sites requiring power supplies operating with an input voltage of 48 V DC please see the following options: