TOPSTAR TECHNOLOGY INDUSTRIAL CO., LIMITED
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1.25G 1310/1550nm(1550/1310nm) 120KM Transceiver Network Solution Products
120Km Transceiver Network Solution Products Fetures:
●Up to1.25Gb/s data links
●DFB laser transmitter
●APD receiver
●Up to 120KMon9/125μmSMF
●Hot-pluggable SFP footprint
●BIDILC/UPC type pluggable optical interface
●Low power dissipation
●Metal enclosure, for lower EMI
●RoHS compliant and lead-free
●Single+3.3Vpowersupply
●Support Digital Diagnostic Monitoring interface
●Compliant with SFF-8472
●Case operating temperature:0°Cto+70°C
APPLICATIONS
●Switch to Switch Interface
●Fast Ethernet
●Switched Backplane Applications
●Router/Server Interface
●Other Optical Links
STANDARD
● SFP+MSA Compliant
● SFF-8472reversion9.5 compliant
● IEEE802.3-2005 compliant
● Telcordia GR-468-CORE compliant
● FCC47CFRPart15,Class B compliant
● FDA21CFR1040.10and1040.11,class1 compliant
Optical Module 80km BIDI Specification
| Fibre type | SMF |
| Temperature | 0°Cto+70°C |
| Power supply | 3.3V |
| Distance | 120Km |
| Form-Factor | SFP |
| Wavelength | 1310/1550 nm |
| Certificate | ROHS |
| Optical Extinction Ratio | 9dB |
Digital Diagnostic Functions
SFP 1.25G 120KM 1310&1550 transceivers support the2-wire serial communication protocol as defined in the SFPMSA. It is
very closely related to the E2PROM defined in the GBIC standard, with the same electrical specifications.
The standard SFP serial ID provides access to identification information that describes the transceiver’s capabilities, standard
interfaces, manufacturer, and other information.
Additionally, Top-trans SFP transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-
time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power,
received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which
alert send-users when particular operating parameters are outside of a factory set normal range.
The SFPMSA defines a 256-byte memory map in E2PROM that is accessible over a 2-wireserial in
terface at the 8 bit address1010000X(A0h).The digital diagnostic monitoring interface makes use of the 8 bit address
1010001X(A2h), so the originally defined serial ID memory map remains unchanged. The interface is identical to, and is thus
fully backward compatible with both the GBIC Specification and the SFP Multi Source Agreement.
