Sales Manager Muhammad Babar 03157079991 03215280052 Tel: +92 51-4310452, 4101135, 2512254 SYNCHCOM 155Mbps SFP Transceiver Modules with DDM Function SC-SFP-TM140 DDM SYNCHCOM 155Mbps SFP Transceiver Modules with DDM Function SC-SFP-TM140 DDM SYNCHCOM Small Form-Factor Pluggable (SFP) is a compact, hot-pluggable transceiver used for both telecommunication and data communications applications. It interfaces a network device mother board (for a switch, router, media converter or similar device) to a fiber optic or copper networking cable. It is a popular industry format supported by many network component vendors. SFP transceivers are designed to support SONET, Gigabit Ethernet, Fibre Channel, and other communications standards. SFP transceivers are available with a variety of different transmitter and receiver types, allowing users to select the appropriate transceiver for each link to provide the required optical reach over the available optical fiber type (e.g. multi-mode fiber or single-mode fiber). Optical SFP modules are commonly available in several different categories: 850 nm 550m MMF (SX), 1310 nm 10km SMF (LX), 1550 nm [40 km (XD), 80 km (ZX), 120 km (EX or EZX)], and DWDM. SFP transceivers are also available with a copper cable interface, allowing a host device designed primarily for optical fiber communications to also communicate over unshielded twisted pair networking cable. There are also CWDM and single-fiber bi-directional (1310/1490 nm Upstream/Downstream) SFPs. SFP transceivers are commercially available with capability for data rates up to 4.25 Gbit/s. 10 Gbit/s transceivers are available in several form factors, such as XFP, and the newest variant SFP+, in form factor virtually identical to the SFP type. The SFP transceiver is specified by a multi-source agreement (MSA) between competing manufacturers. The SFP was designed after the GBIC interface, and allows greater port density (number of transceivers per inch along the edge of a mother board) than the GBIC, which is why SFP is also known as mini-GBIC. The related Small Form Factor transceiver is similar in size to the SFP, but is soldered to the host board as a pin through-hole device, rather than plugged into an edge-card socket. The SFP MSA defines a 256-byte memory map in EEPROM describing the transceivers capabilities, standard interfaces, manufacturer, and other information, which is accessible over I²C interface at the 8-bit address 10100000X (A0h). Modern optical SFP transceivers support digital diagnostics monitoring (DDM) functions according to the industry-standard SFF-8472. This feature is also known as digital optical monitoring (DOM). This feature gives the end user the ability to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage. The diagnostic monitoring controller is available as I²C device at address 10100001X (A2h). Features Duplex LC receptacle optical interface Single +3.3V power supply Hot-pluggable AC coupling of PECL signals Serial ID module on MOD(0-2) DDM Function implemented External Calibration International Class 1 laser safety certified Transmitter disable input Receiver Loss of Signal Output Operating temperature range: -10°C ~+70°C Compliant with RoHS Applications SDH/ STM-1, SONET/OC-3 Metropolitan area network Fast Ethernet Other optic link Standards Compliant with SFP MSA (INF-8074i) Compliant with ITU-T G.957 STM-1 Compliant with SFF-8472 v9.3
Posted on: Sat, 02 Aug 2014 17:27:13 +0000