1.25G Optical Transceiver 10Km 1550/1310nm Multi Mode Fiber SFP Module

Optical Module 10Km 1550/1310nm Fetures:

Up to 1.25Gb/s data links

FP laser transmitter for TOP-BIDI-1.25G-10AD/BD

DFB laser transmitter for TOP-BIDI-1.25G-10AD/BD

PIN photo-detector

Up to 10km on 9/125μm SMF

Hot-pluggable SFP footprint

BIDI LC/UPC type pluggable optical interface

Low power dissipation

Metal enclosure, for lower EMI

RoHS compliant and lead-free

Single +3.3V power supply

Support Digital Diagnostic Monitoring interface

Compliant with SFF-8472

Case operating temperature Commercial: 0°C to +70°C Extended: -10°C to +80°C Industrial: -40°C to +85°C

APPLICATIONS

Switch to Switch Interface

Fast Ethernet

Switched Back plane Applications

Router/Server Interface

Other Optical Links

STANDARD

SFP+ MSA Compliant

SFF-8472 reversion 9.5 compliant

IEEE802.3-2005 compliant

Telcordia GR-468-CORE compliant

FCC 47 CFR Part 15,Class B compliant

SFP 1.25G 10KM 1310&1550 optical transceivers are designed for optical interfaces for data communications with single mode

fiber (SMF).The transceiver designs are optimized for high performance and cost effective to supply customers the best

solutions for telecom applications.

SFP 1.25G 10KM 1310&1550 transceivers support the 2-wire serial communication protocol as defined in the SFP MSA. 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, SFP 1.25G 10KM 1310&1550 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 alerts end-users when particular operating parameters are outside of a factory set normal range.

The SFP MSA defines a 256-byte memory map in E2PROM that is accessible over a 2-wire serial interface at the 8bit address

1010000X (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.

The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC)

inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated, the serial clock

signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments

of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal

(SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end

of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or

sequentially.

Digital diagnostics for the TOP-BIDI-1.25G-10AD/BD are Internally calibrated by default.