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Reach RT-PoE3NL/8, Manual

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Reach RT-PoE3NL/8 Manual Download Page 20

Reach PoE Tester Manual V1.4 

02/15/2018 

Page 20 

Appendix A - Operational Notes 

 

A.1 

Power-on 

When the unit is powered on, it performs a self-calibration of its dynamic class and 

power loads. This takes around 105 seconds. While calibrating, the unit flashes the front 
panel LED and displays the following. The prompt "

RT-PoE3N>

" indicates that the unit 

is ready for commands. 

RT-PoE3N>”(revision dependent version string)” 
Calibrating all ports.. 
:p1 Autocal OK 
:p2 Autocal OK 
:p3 Autocal OK 
:p4 Autocal OK 
:p5 Autocal OK 
:p6 Autocal OK 
:p7 Autocal OK 
:p8 Autocal OK 

RT-PoE3N> 

 

A.2 

High power testing including IEEE 802.3at 

The inrush delay mandated by IEEE 802.3at requires that a high power load (over 

400mA) cannot be applied until after the 80mS inrush period. The “auto” command 

enforces this inrush delay. 

Summary of Contents for RT-PoE3NL/8

Page 1: ...nta Company 2005 2018 All Rights Reserved Information contained in this user documentation is subject to change without notice and does not represent a commitment on the part of Reach Technology Reach...

Page 2: ...3 UUT UNIT UNDER TEST AND REFERENCE CONNECTIONS 7 4 CONNECTORS AND JUMPERS 9 4 1 RJ 45 ETHERNET CONNECTORS 9 4 2 REAR CONNECTORS 9 4 3 INTERNAL ETHERNET POWER JUMPERS 10 5 OPERATIONAL OVERVIEW 11 5 1...

Page 3: ...INCLUDING IEEE 802 3AT 20 A 3 ERROR MESSAGES 21 APPENDIX B TEST SETUPS 22 B 1 OVERVIEW 22 B 2 SIGNATURE DETECT 22 B 3 CLASS DETECT 22 B 4 POWER STATUS AND OVERLOAD IEEE 802 3AF 23 B 5 DATA TRANSMISSIO...

Page 4: ...History 1 1 RT PoE3NL 8 Base Model The Model RT PoE3NL 8 is the initial version in production It can be recognized by the version string as follows see version command also seen on power on Reach PoE...

Page 5: ...ssumes that the PSE can be operated in a diagnostic mode whereby the power control and detection functions of the PSE can be individually tested The LLPD protocol specified by the 802 3at standard is...

Page 6: ...age 110 220 power supply Serial RS232 console control 2 4 Dimensions The unit fits in a standard 19 rack using screw on ears Case outside dimensions are 14 75 deep 17 30 wide 1 74 high 2 5 Electrical...

Page 7: ...ut TxD 4 Ground 5 Ground 6 RS232 data input RxD 7 8 these signals are connected to each other 3 3 UUT Unit Under Test and Reference connections The RT PoE3NL 8 has eight identical test ports Each port...

Page 8: ...ds the DC balance of the patch cables used is important to avoid DC saturation of the Ethernet transformers DC Balance DC resistance per side of the power carrying pair should be within 3 The standard...

Page 9: ...enabled via software command the data component of the UUT port will be connected to the REF connector below it This is a straight through connection not a crossover 4 2 Rear Connectors Picture 3 Far...

Page 10: ...unit is shipped in Type 1 mode Note that only two jumpers are to be installed for each port Conductor Type 1 MIDI X Type 2 MIDI Type 3 AII 1 Negative Vport Positive Vport 2 Negative Vport Positive Vp...

Page 11: ...connects to UUT data pair 3 6 5 2 Power input The power from the UUT can be measured shorted or connected to the Full Wave Bridge and subsequent load circuits UUT RJ 45 REF RJ 45 To Power input ext co...

Page 12: ...can also be used to simulate an AC load for AC disconnect testing The classification load is variable and can be margined The power good status of the IEEE controller goes active once the load capaci...

Page 13: ...ost commands have a short form version The optional characters of a command are indicated by the brackets All commands that take on or off arguments can also take 1 and 0 as arguments Responses from t...

Page 14: ...ed r n HOSTNAME Description Used to change the unit s prompt This is useful in a production system so the script knows exactly which physical unit it is talking to Name must be equal or less than 31 c...

Page 15: ...ed Command boot PORT GROUP PREFIX Description For all port specific commands a port or group prefix will restrict the command to a specific port or port group The prefix must be followed by a space be...

Page 16: ...ad class See IEEE 802 3af specification Command cl ass 0 1 2 3 4 Arguments margin up 5 margin down 5 margin up 10 margin down 10 Response printf p d class d c n port class margin Example p7 cl 3 Examp...

Page 17: ...respectively LOAD Description Controls the power load connected to the output of the full wave bridge The value of the load is determined by the SET command This is typically used only with legacy non...

Page 18: ...350mA CR LF p5 350mA CR LF p6 350mA CR LF p7 350mA CR LF p8 350mA CR LF SET MPS Description Sets a maintain power signature in which the load is cycled between the set value and a minimum under 5mA v...

Page 19: ...ription Returns the Power Good status of the IEEE load controller The status is active when the IEEE controller is receiving power above the UVLO value and the load capacitor is charged Command st atu...

Page 20: ...ollowing The prompt RT PoE3N indicates that the unit is ready for commands RT PoE3N revision dependent version string Calibrating all ports p1 Autocal OK p2 Autocal OK p3 Autocal OK p4 Autocal OK p5 A...

Page 21: ...alibration first If the power on calibration was interrupted and the set or class commands are used this error message is generated invalid class value The CLASS command argument is not 0 thru 4 Error...

Page 22: ...the PSE does not see a PD detect ok Verify that the PSE does recognize a valid PD detect hi Verify that the PSE does not see a PD detect lo Verify that the PSE does not see a PD detect ok cap on Verif...

Page 23: ...easure verify that voltage is as expected set 350 Verify that PSE is providing full power set 390 Verify that PSE sees overload and shuts off power status verify that power is off B 5 Data transmissio...

Page 24: ...ester Manual V1 4 02 15 2018 Page 24 B 6 IEEE 802 3at This is the same as B 3 and B 4 above but set class to 4 for high power classification and set up to 600mA for data transmission and up to 800mA f...

Page 25: ...ithout notice C 2 Maximum Current Setting Continuous The maximum continuous current rating for PoE3 is 720mA per port See note below Absolute The SET command the current to be set to a maximum of 800m...

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