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Technical Information Power over Ethernet PoE for Datalogger ECOLOG LP4 The use of a PoE system is a recommended alternative to an socket type power supply.
A) PoE external unit to Datalogger ECOLOG LP4 If the LAN network offers the possibility for PoE supply to the device, then a PoE splitter device has to be attached externally to the datalogger. Possible power source: PoE Injectors or LAN Switch with PoE power output. Before use: Check compatibility of PoE Supply with Splitter unit.
LAN Network to Logger Sensor PT100 Cables
Line from LAN Network with PoE Supply 48 Volt
Power Supply 12V DC to Logger External PoE Splitter Device 12 Volt DC
B) PoE internal device in Datalogger ECOLOG LP4 P. No. 2730-A: Mounting set PoE-splitter for Ecolog-Net, (to be mounted at an Elpro Service center) If the LAN network offers the possibility for PoE supply to the device, then an ECOLOG Net logger with built in splitter device is required. Possible power source: PoE Injector or LAN Switch with PoE power output. Before use: Check compatibility of PoE Supply with built in splitter unit. Built in PoE Splitter Device to 12 Volt
LAN Network with PoE Supply 48Volt
1-4 Sensors Cables to PT100
Conditions to the LAN Injector or Switch: Type of LAN Network: Ethernet 10/100Base-T/TX Type of PoE Source: Twisted-pair wiring as shown. Power must be carried on spare wire pairs
AB / V1.3; February 2005M:\Verkauf\Dokumentation-Werbung\ECOLOG NET\PoE Info\ECOLOG LP4 with PoE Supply.doc Elpro-Buchs AG Langäulistrasse 62 CH-9471 Buchs SG
www.elpro.com
Tel.: 081 750 03 11 Fax: 081 750 03 17 Mail:
[email protected]
Technical Information Power over Ethernet PoE for Datalogger ECOLOG LP4 C) Wiring of LAN Connector or POE For the ELPRO internal POE device the following wiring is required: Power on Spare Wires There are 4 different twisted pair cable. All cables are used in twisted pairs as: PRx = Wire Pair This corresponds to - EIA (TIA) 568B, AT&T 258A, WECO (preferred) - EIA (TIA) 568A (with PR2 / PR3 interchanged) PR3 PR2
PR1
PR4 shown: EIA 568B Elpro internal POE: PR1 = Power (+ or -) PR4 = Power ( - or +)
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PR2 and PR3 = Signal
D) Recommended Switches / Injectors Do not use injectors with power over the data wires: The following three types do work and are recommended (February 2005): Type: PoE Switch; Switch and Injector as one unit 1. NORTEL: - BayStack 460-24T-PWR Switch - 24 Ports - Input Power: 100-240Vac (110V / 230V UPS System may be added) - Power on spare wires (pins 4,5 / 7,8) or as Phantom Power (pins 1,2 / 3,6), configurable, default: Power on spare wire 2. 3COM: Type: Multiport-Injector (Midspan Solution only); Needs additional Switch - 3CNJPSE24 - 24 Ports - Input Power: 88-264Vac, 48Vdc (Optimal for 48VDC battery backup or 110V / 230V UPS) - Power on spare wires (pins 4,5 / 7,8)
3. CISCO:
Type: Multiport-Injector (Midspan Solution only); Needs additional Switch - WS-PWR-PANEL; Catalyst Inline Power Patch Panel - 48 Ports - Input Power: 88-264Vac (110V / 230V UPS System may be added) - Power on spare wires (pins 4,5 / 7,8)
AB / V1.3; February 2005M:\Verkauf\Dokumentation-Werbung\ECOLOG NET\PoE Info\ECOLOG LP4 with PoE Supply.doc Elpro-Buchs AG Langäulistrasse 62 CH-9471 Buchs SG
www.elpro.com
Tel.: 081 750 03 11 Fax: 081 750 03 17 Mail:
[email protected]
