https://community.extremenetworks.com/t5/network-architecture-design/100fx-rx-tx-power-level-a2h254-16-x440-g2-12t8fx-ge4/m-p/14603#M2007 Hello, I've problems during a migration from A2H254-16 to X440-G2-12t8fx-GE4 on fixed 100FX ports. Currently I've 100FX Microsens mini-switches connected via breakout-cable to mtrj 100FX Ports on A2. I used a mtrj/mtrj adaptor and mtrj/lc cable to connect to fixed 100FX LC Ports on X440-G2-12t8fx-GE4. But I've massive problems to got a link on X440G2 switch. On fast switching the cable from A2 to X440G2 sometimes I got a Link, but sometimes not and not on all microsense switches. On the A2 everthing works fine. I think the problem would be the mtrj/mtrj adaptor. But I don't know it. Next step is a OTDR-Check over complete cable. But for understanding the result I need min and max transmit and receive power level value of fixed 100FX ports of both switches. And this is my problem. I can't find informations for this values. I only find values for SFP transceivers, but that doesn't help... Can someone help me? Thu, 16 Mar 2017 02:48:00 GMT PeterK 2017-03-16T02:48:00Z https://community.extremenetworks.com/t5/network-architecture-design/100fx-rx-tx-power-level-a2h254-16-x440-g2-12t8fx-ge4/m-p/14603#M2007 Hello, I've problems during a migration from A2H254-16 to X440-G2-12t8fx-GE4 on fixed 100FX ports. Currently I've 100FX Microsens mini-switches connected via breakout-cable to mtrj 100FX Ports on A2. I used a mtrj/mtrj adaptor and mtrj/lc cable to connect to fixed 100FX LC Ports on X440-G2-12t8fx-GE4. But I've massive problems to got a link on X440G2 switch. On fast switching the cable from A2 to X440G2 sometimes I got a Link, but sometimes not and not on all microsense switches. On the A2 everthing works fine. I think the problem would be the mtrj/mtrj adaptor. But I don't know it. Next step is a OTDR-Check over complete cable. But for understanding the result I need min and max transmit and receive power level value of fixed 100FX ports of both switches. And this is my problem. I can't find informations for this values. I only find values for SFP transceivers, but that doesn't help... Can someone help me? Thu, 16 Mar 2017 02:48:00 GMT https://community.extremenetworks.com/t5/network-architecture-design/100fx-rx-tx-power-level-a2h254-16-x440-g2-12t8fx-ge4/m-p/14603#M2007 PeterK 2017-03-16T02:48:00Z https://community.extremenetworks.com/t5/network-architecture-design/100fx-rx-tx-power-level-a2h254-16-x440-g2-12t8fx-ge4/m-p/14604#M2008 The fixed 100FX ports have the same spec's as the mtrj sfp as far as I know.<BR /> Transmit min/max dBm = -9.5/-3<BR /> Receive min/max dBm = -17/ 0<BR /> Thu, 16 Mar 2017 19:14:00 GMT https://community.extremenetworks.com/t5/network-architecture-design/100fx-rx-tx-power-level-a2h254-16-x440-g2-12t8fx-ge4/m-p/14604#M2008 Daniel_Coughlin 2017-03-16T19:14:00Z