©2015 Glenair, Inc.

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US Cage Code 06324

Printed in USA

GLENAIR, INC.

∙ 1211 AIR WAY ∙ GLENDALE, CA 91201-2497

∙ TEL: 818-247-6000

∙ FAX: 818-500-9912

www.glenair.com

PAGE 6 of 15

E-mail: sales@glenair.com

050-354 Product Brief

PCB Mount Transceiver for Single Mode Fiber

2.5 - 5 Gbps, 3.3V

TRANSMITTER SECTION

Transmit Disable (Tx_Disable)

The transmitter section of the transceiver accepts a TTL and CMOS compatible transmit disable control signal input that

shuts down the transmitter optical output. A high signal disables the transmitter while a low signal allows normal

transceiver operation. Also laser is disabled when TX Disable is open. In the event of a fault (e.g. eye safety circuit

activated), cycling this control signal resets the module. Host systems should allow a 10ms interval between successive

assertions of this control signal.

Transmit Fault (Tx_Fault)

A catastrophic laser fault will activate the transmitter signal, TX_FAULT, and disable the laser. This signal is an open

collector output (pull-up required on the host board). A low signal indicates normal laser operation and a high signal

indicates a fault. The TX_FAULT will be latched high when a laser fault occurs and is cleared by toggling the

TX_DISABLE input or cycling the power of the transceiver. The transmitter fault condition can also be monitored via the 2-

wire serial interface (address A2, byte 110, bit 2).

Figure 2

PCB mount Transceiver Block Diagram