Endace DAG 5.2X, User Manual

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EDM01-33v1 DAG_7.5G4_Card_User_Guide
12 ©2008 Endace Technology Ltd. Confidential - Version 1 - November 2008
Pluggable Optical Transceivers
Overview
The DAG 7.5G4 card supports industry standard Small Form-factor Pluggable (SFP) optical
transceivers.
The transceivers consist of two parts:
•
Mechanical chassis attached to the circuit board
• Transceiver unit which may be inserted into the chassis
Note: You must select the correct transceiver type to match the optical parameters of the
network to which you want to connect. Configuring the card with the wrong
transceiver type may damage the card.
You can connect the transceiver to the network via LC-style optical connectors.
For further information on pluggable optical transceivers please refer to the Endace website
at http://www.endace.com
Optical modules
.
The optical power range depends on the particular SFP module that is fitted to the DAG
4.5Z2/4.5Z8 card. Optics modules are supplied in either Single or Multi mode. See the
following table for details.
Optical power is measured in dBm. This is decibels relative to 1 mW where 10 dB is
equivalent to a factor of 10 in power. A negative optical power value indicates power that is
less than 1 mW. The most sensitive devices can work at power levels down as low as -30dBm
or 1µW.
The DAG 4.5Z2/4.5Z8 card optics power module specification is shown below:
Product
Number Network Support
Receive Characteristics Transmit Characteristics
Wavelength
(nm)
Sensitivity
(dBm)
Wavelength Tx Power
(dBm)
Min Max Min Max (nm) Min Max
TXR-1000SX 1000BASE-SX Multimode 770 860 -20 0 850 -9 -3.5
TXR-1000LX 1000BASE-LX Single mode 1270 1600 -22 0 1310 -9.5 -3
If you are in doubt over the light levels available for the DAG card receive ports, check the
light levels using an optical power meter.
Cover DAG 4.5Z2/4.5Z8 card transmit ports with LC-style plugs to prevent dust and
mechanical hazards damaging optics if not in use.