SFP GLC-T Datasheet

[Giteh]

Hello,

Is there any document where EEPROM format of GLC-T is explained?

I need this for find out by I2C communication what connector type is in SFP.

Best regards,

Patryk

[pieterh]

GLC-T is an twisted-pair/copper connection -> RJ45

Why would you expect different connector types?

[pieterh]

does this information help ?

[Giteh]

Hello,

I've seen this document before but when I'm reading from EEPROM in GLC-T in the field with the address 0x02 there is value 0x0. 

According to document this means that connector type is "Unknown or unspecified". 

Is there any other field in EEPROM which will help findout is this SFP for copper or fiber wire?

I'm creating software on microconroller which has to findout what type of SFP is connected to him  (copper or fiber).

Best regard

[pieterh]

if you have an operational cisco switch to insert the sfp

you can try the command 

     sh idprom interface gix/y

it will display the formatted output and the raw eeprom data at the bottom ?

General SFP Information
-----------------------------------------------
Identifier            :   SFP/SFP+
Ext.Identifier        :   SFP function is defined by two-wire interface ID only
Connector             :   Unknown
Transceiver
 10GE Comp code       :   Unknown
 SONET Comp code      :   OC 48 short reach

........

SEEPROM contents (hex):
 0x00: 03 04 00 00 00 00 08 00 00 00 00 01 0D 00 00 00
 0x10: 00 00 64 00 4D 65 74 68 6F 64 65 20 45 6C 65 63
 0x20: 2E 20 20 20 01 00 00 00 53 50 37 30 34 31 20 20

......

as you can this also displays "unknown" as connector type.

check for other items you can use to discriminate