050_344 Datasheet, PDF (7/16 Pages) Glenair, Inc. – FMC CONNECTIVITY CARD

050-344
FMC CONNECTIVITY CARD
For Glenair PCB Mount Opto-Electronic Converters
Schematic User interface Blocks (050-344-A) continued
U7 I²C GPIO
This is an I2C controlled GPIO device that can be used to read the RX_LOS signal and TX_FAULT status of each
transceiver as well as set the TX_DISABLE lines to disable the transmitter output. If control of this is not desired the user
can use a jumper on the J5, J6, J7 and J8 headers to manually enable the transmitter output. The headers are also
marked on the board as TXDIS_0 for channel 0 (single XCVR) TXDIS_1 for channel 1(Dual XCVR first chan.) and so on.
IC P/N: MCP23017-E/ML (Microchip)
I2C address: 0100000X
Headers to manually enable the transmitters
©2014 Glenair, Inc.
GLENAIR, INC.
www.glenair.com
REV: 3
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