DP83TD510E-EVM:SPE cable of 1000m or more

user6545409

Other Parts Discussed in Thread: DP83TD510E-EVM, DP83TD510E

Hi,

We are verifying SPE using two sets of DP83TD510E-EVM.
I was able to confirm communication up to a cable distance of 1,000 m, but I could not communicate at 1,200 m.
We are expecting that communication will be possible even with a 1,200m cable,since the DP83TD510E is compatible with a 2,000m cable.

What you want to check
1) Is it possible to use a cable longer than 1,000 m with the DP83TD510E-EVM?
2) If you can use a cable of 1,000 m or more with DP83TD510E-EVM, would you tell me if there are any operations (register settings, etc.) that you should be careful about?

Reference material
1) DP83TD510E-EVM User’s Guide
www.tij.co.jp/.../snlu271
2) DP83TD510E data sheet
www.tij.co.jp/.../dp83td510e

over 5 years ago

0 Nikhil Menon over 5 years ago

TI__Genius 11725 points

Hello,

To answer your questions:

1. Yes we have seen cables reach greater than 1700m with the Siemens 6XV1830-5EH10 cable.

2. Some additional setting to reach this cable length are noted in this Application Note:

Please note, after additional testing, the datasheet was updated to include a cable reach up to 2000 meters. I will check internally if additional settings were needed to extend this cable reach. Please review the Application Note until I am able to provide further feedback.

Thank you,

Nikhil

0 user6545409 over 5 years ago in reply to Nikhil Menon

Prodigy 20 points

Hi Nikhil,

When I fixed Master / Slave and changed it to 2.4 Vpp, I was able to confirm that communication of 2000 m or more was possible.
I also attach the script I used.

Fullscreen 6428.Force_2v4Vpp_Master_Init.txt Download

begin

000d 001F 
000e 001f 
000d 401f 
000e 8000 //hard reset
000d 0007 
000e 0200 
000d 4007 
000e 0000 //disable autoneg MMD 07
000d 0001 
000e 0834 
000d 4001 
000e 4000 //Force Master Mode MMD 01
000d 0001 
000e 08f6 
000d 4001 
000e 1000 //Force 2.4V swing MMD 01
000d 001F 
000e 0608 
000d 401f 
000e 003b //disable_0_transition
000d 001F 
000e 0862 
000d 401f 
000e 39f8 //AGC Gain during Autoneg
000d 001F 
000e 081a 
000d 401f 
000e 67c0 //deq offset for 1V swing
000d 001F 
000e 081c 
000d 401f 
000e fb62 //deq offset for 2.4V swing
000d 001F 
000e 0830 
000d 401f 
000e 05a3 //Enable energy lost fallback
000d 001F 
000e 0855 
000d 401f 
000e 1b55 //MSE Threshold change
000d 001F 
000e 0831 
000d 401f 
000e 0403 //energy detect threshold
000d 001F 
000e 0856 
000d 401f 
000e 1800 //good1 MSE threshold change
000d 001F 
000e 0857 
000d 401f 
000e 8fa0 //Enable fallback to phase 1 on watchdog trigger
000d 001F 
000e 0871 
000d 401f 
000e 000c //TED input changed to slicer_in without FFE
000d 001F 
000e 0883 
000d 401f 
000e 022e //Enable Rx Filter, Change PGA threshold for Short Cable detection
000d 001F 
000e 0402 
000d 401f 
000e 1800 //Adjusr LD swing
000d 001F 
000e 0878 
000d 401f 
000e 2248 //Change PI up/down polarity
000d 001F 
000e 010c 
000d 401f 
000e 0008 //tx filter coefficient
000d 001F 
000e 0112 
000d 401f 
000e 1212 //tx filter scaling factor
000d 001F 
000e 0809 
000d 401f 
000e 5c80 //AGC retrain
000d 001F 
000e 0803 
000d 401f 
000e 1529 //Master Ph1 Back-off
000d 001F 
000e 0804 
000d 401f 
000e 1a33 //Master Ph1 Back-off
000d 001F 
000e 0805 
000d 401f 
000e 1f3d //Master Ph1 Back-off
000d 001F 
000e 0850 
000d 401f 
000e 045b //hybrid gain & delay
000d 001F 
000e 0874 
000d 401f 
000e 6967 //kp step 0 for master
000d 001F 
000e 0852 
000d 401f 
000e 7800 //FAGC init gain
000d 001F 
000e 0806 
000d 401f 
000e 1e1e //Master/Slave Ph2 Back-off
000d 001F 
000e 0807 
000d 401f 
000e 2525 //Master/Slave Ph2 Back-off
000d 001F 
000e 0808 
000d 401f 
000e 2c2c //Master/Slave Ph2 Back-off
000d 001F 
000e 0850 
000d 401f 
000e 0590 //Hybrid Gain/Delay Code
000d 001F 
000e 0827 
000d 401f 
000e 4000 //Echo Fixed Delay
000d 001F 
000e 0849 
000d 401f 
000e 0fe4 //Hybrid Cal enable
000d 001F 
000e 084b 
000d 401f 
000e 04b5 //Echo Score Sel
000d 001F 
000e 001f 
000d 401f 
000e 4000 //soft reset

end

Fullscreen 8875.Force_2v4Vpp_Slave_Init.txt Download

begin

000d 001f 
000e 001f 
000d 401f 
000e 0000 //hard reset
000d 0007 
000e 0200 
000d 4007 
000e 0000 //disable autoneg MMD 07
000d 0001 
000e 0834 
000d 4001 
000e 0000 //Force Slave Mode MMD 01
000d 0001 
000e 08f6 
000d 4001 
000e 1000 //Force 2.4V swing MMD 01
000d 001f 
000e 0608 
000d 401f 
000e 003b //disable_0_transition
000d 001f 
000e 0862 
000d 401f 
000e 39f8 //AGC Gain during Autoneg
000d 001f 
000e 081a 
000d 401f 
000e 67c0 //deq offset for 1V swing
000d 001f 
000e 081c 
000d 401f 
000e fb62 //deq offset for 2.4V swing
000d 001f 
000e 0830 
000d 401f 
000e 05a3 //Enable energy lost fallback
000d 001f 
000e 0855 
000d 401f 
000e 1b55 //MSE Threshold change
000d 001f 
000e 0831 
000d 401f 
000e 0403 //energy detect threshold
000d 001f 
000e 0856 
000d 401f 
000e 1800 //good1 MSE threshold change
000d 001f 
000e 0857 
000d 401f 
000e 8fa0 //Enable fallback to phase 1 on watchdog trigger
000d 001f 
000e 0871 
000d 401f 
000e 000c //TED input changed to slicer_in without FFE
000d 001f 
000e 0883 
000d 401f 
000e 022e //Enable Rx Filter, Change PGA threshold for Short Cable detection
000d 001f 
000e 0402 
000d 401f 
000e 1800 //Adjusr LD swing
000d 001f 
000e 0878 
000d 401f 
000e 2248 //Change PI up/down polarity
000d 001f 
000e 010c 
000d 401f 
000e 0008 //tx filter coefficient
000d 001f 
000e 0112 
000d 401f 
000e 1212 //tx filter scaling factor
000d 001f 
000e 0809 
000d 401f 
000e 5c80 //AGC retrain
000d 001f 
000e 0803 
000d 401f 
000e 1529 //Master Ph1 Back-off
000d 001f 
000e 0804 
000d 401f 
000e 1a33 //Master Ph1 Back-off
000d 001f 
000e 0805 
000d 401f 
000e 1f3d //Master Ph1 Back-off
000d 001f 
000e 0850 
000d 401f 
000e 045b //hybrid gain & delay
000d 001f 
000e 0874 
000d 401f 
000e 6967 //kp step 0 for master
000d 001f 
000e 0852 
000d 401f 
000e 7800 //FAGC init gain
000d 001f 
000e 0806 
000d 401f 
000e 1e1e //Master/Slave Ph2 Back-off
000d 001f 
000e 0807 
000d 401f 
000e 2525 //Master/Slave Ph2 Back-off
000d 001f 
000e 0808 
000d 401f 
000e 2c2c //Master/Slave Ph2 Back-off
000d 001f 
000e 0850 
000d 401f 
000e 0590 //Hybrid Gain/Delay Code
000d 001f 
000e 0827 
000d 401f 
000e 4000 //Echo Fixed Delay
000d 001f 
000e 0849 
000d 401f 
000e 0fe4 //Hybrid Cal enable
000d 001f 
000e 084b 
000d 401f 
000e 04b5 //Echo Score Sel
000d 001f 
000e 001f 
000d 401f 
000e 4000 //soft reset

end

Thank you for your confirmation.

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DP83TD510E-EVM:SPE cable of 1000m or more