NUMBER

GS-12-0984

TYPE

Product Specification

TITLE

PAGE

REVISION

TRX10GDL0610C3 (SFP+ LRM Module)

10 of 16

A

AUTHORIZED BY

DATE

J. Blank

27 Apr. 2011

CLASSIFICATION

UNRESTRICTED

Copyright © 2011 FCI Deutschland GmbH. FCI Deutschland GmbH reserves the right to make changes to this document at any time without notice.

Information in this document is believed to be reliable. However, no responsibility is assumed for possible inaccuracy or omission.

Receiver Optical Power

RX input power measurement is based on photodiode average current. Represented as a 16-bit unsigned

integer with the power defined as the full 16 bit value (0 – 65535) with LSB equal to 0.1 µW. Accuracy is

better than +/-3 dB over a range of -13 dBm to 0.5 dBm.

Note: The specified characteristics are met within the recommended range of operating conditions regarding temperature and voltage.

Tx Input Equalizer Adjustment

The transceiver is equipped with an equalizer at the transmitter input (at the electrical module interface) to

compensate for high frequency signal loss on the host board printed circuit board (Host-PCB) into which the

transceiver is plugged and to allow performance optimization in interaction with an host board equalizers (if

there is one).

There are different module equalizer settings available to adjust the strength of the equalization which may

be selected according to the line length of Host-PCB signal tracks.

MSB

Content of Register 248 in Table A2h

LSB

reserved

Tx2

Tx1

Tx0

reserved

reserved

reserved

reserved

Register 248 is always readable, but only writable if a valid passcode has been written to registers 124 – 127

of table A2h before (see paragraph Passcode Entry and Modification below). Reserved bits of register 248

should be written to 0. After power up, the module always comes up with its factory programmed default

equalizer setting.

Transmitter Input Signal Equalizer Settings:

Tx2

Tx1

Tx0

Description

0

X

X

Input equalizer off

1

0

0

Low equalization

1

0

1

Reserved

1

1

0

Default equalization (factory setting)

1

1

1

Reserved

X: don’t care

PDS: Rev :A

STATUS:Released

Printed: Jan 03, 2012