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Cisco SFP - 1000base-SX Gigabit Ethernet, 850



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(Sidst opdateret: d. 10-03-2018 kl. 09:37)

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Cisco SFP - 1000base-SX Gigabit Ethernet, 850nm, MM, I-Temp, 1000 Mbit/s, Kabel, 850 nm, 7919921t, 1W, -40 - 85 °C


SFP Module
The SFP transceiver module is a bidirectional device with a transmitter and receiver in the same physical package. The module interfaces to the network through a connector interface on the electrical ports and through an LC termination connector on the optical ports. Electrical interfaces and dimensions are defined in the SFF-8472 industry-standard multisource agreement (MSA).

A schematic of the SFP transceiver module functional block diagram is illustrated in Figure 2. It contains three parts: the transmitter, receiver, and Electrically Erasable Programmable Read-Only Memory (EEPROM) storage chip. This block diagram is intended for information purposes only and does not illustrate design requirements.

In the transmit direction, the SFP transceiver module receives the electrical signal and transmits this data in an optical signal by using a laser driver that controls the laser diode. The optical output power is held constant by an automatic power control circuit.

In the receive direction, the SFP transceiver module receives an NRZ optical signal and converts it to an electrical equivalent. The receive portion of the module will use some kind of amplifier to control the converted electrical signal.

This type of SFP transceiver is identified by the standard two-wire serial interface used in EEPROM with an I2C interface (with serial ID functions) that is part of the GBIC specifications and the SFF-8472 MSA. In addition, EEPROM offers an enhanced monitoring interface for optical transceivers as described in SFF-8472, which allows real-time access to the device to enable monitoring of received optical power, laser bias current, laser optical output power, etc.

Cisco SFP - 1000base-SX Gigabit Ethernet, 850nm, MM, I-Temp. Dataoverførselshastighed (maks.): 1000 Mbit/s. Forbindelsesteknologi: Kabel. Bølgelængde: 850 nm, Tid mellem fejl (MTBF): 7919921t. Strømforbrug (normal): 1W. Sendestrøm: -9.5 - 0 dBm, Kabelteknologi: 1000Base SX, Grænseflade: SFP

Dataoverførselshastighed (maks.)1000 Mbit/s


Dataoverførselshastighed (maks.)1000 Mbit/s
Ports & interfaces
Bølgelængde850 nm
Middeltid mellem fejl7919921t
Plug and play
Miljømæssige betingelser
Operationel temperatur-40 - 85 °C
Andre funktioner
Transmit power-9.5 - 0 dBm
Kablingsteknologi1000Base SX
Overholdelse af branchestandarderIEEE-802.3

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