On Wednesday 06 January 2021 15:27:07 Russell King - ARM Linux admin wrote: > On Wed, Jan 06, 2021 at 03:23:38PM +0000, Russell King - ARM Linux admin > wrote: > > On Wed, Jan 06, 2021 at 03:21:38PM +0000, Russell King - ARM Linux admin > > wrote: > > > On Wed, Jan 06, 2021 at 03:55:32PM +0100, Pali Rohár wrote: > > > > On my tested CarlitoxxPro module is: > > > > > > > > Option values : 0x00 0x1c > > > > Option : RX_LOS implemented, > > > > inverted > > > > Option : TX_FAULT implemented > > > > Option : TX_DISABLE > > > > implemented > > > > > > > > When cable is disconnected then in EEPROM at position 0x16e is value > > > > 0x82. If I call 'ip link set eth1 up' then value changes to 0x02, module > > > > itself has a link and I can connect to its internal telnet/webserver to > > > > configure it. > > > > > > Bit 7 reflects the TX_DISABLE pin state. Bit 1 reflects the RX_LOS pin > > > state. It isn't specified whether the inverted/non-inverted state is > > > reflected in bit 1 or not - the definition just says that bit 1 is > > > "Digital state of the RX_LOS Output Pin." > > > > > > > I also tested UBNT module and result is: > > > > > > > > Option values : 0x00 0x06 > > > > Option : RX_LOS implemented > > > > Option : RX_LOS implemented, > > > > inverted > > > > > > > > Which means that those bits are not implemented. > > > > > > > > Anyway I check position 0x16e and value on its value is randomly either > > > > 0x79 or 0xff independently of the state of the GPON module. > > > > > > > > So it is really not implemented on UBNT. > > > > > > There are enhanced options at offset 93 which tell you which of the > > > offset 110 signals are implemented. > > > > That's the ID EEPROM (A0) offset 93 for the Diagnostic address (A2) > > offset 110. > > Looking at the EEPROM dumps you've sent me... the VSOL V2801F has > 0xe0 at offset 93, meaning TX_DISABLE and TX_FAULT soft signals > (which is basically offset 110) are implemented, RX_LOS is not. No > soft signals are implemented on the Ubiquiti module.
UBNT has at EEPROM offset 0x5E value 0x80. CarlitoxxPRO has at this offset value 0xE0. So both SFPs claims that support alarm/warning flags and CarlitoxxPRO claims that support TX_DISABLE and TX_FAULT.
