Optoway

XPB-4920LWG

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Tel: 886-3-5979798

Fax: 886-3-5979737

E-mail: sales@optoway.com.tw http: // www.optoway.com.tw

2008/11/1

V1.0

5

CONNECTION DIAGRAM

Table 3 PIN Description

PIN

Logic

Signal Name

Description

Note

1

GND

Module Ground

1

2

VEE5

-5.2V Power Supply (Not required)

3

3 LVTTL-I

Mod_Desel

Module De-select; When held low allows module to respond to 2-wire serial interface

4 LVTTL-O

Interrupt

Interrupt; Indicates presence of an important condition which can be read over the

2wire serial interface

2

5 LVTTL-I

TX_DIS

Transmitter Disable; Turns off transmitter laser output

6

VCC5

+5V Power Supply (Not required)

3

7

GND

Module Ground

1

8

VCC3

+3.3V Power Supply

9

VCC3

+3.3V Power Supply

10 LVTTL-I/O SCL

Serial 2-wire interface clock

2

11 LVTTL-I/O SDA

Serial 2-wire interface data line

2

12 LVTTL-O

Mod_Abs

Indicates Module is not present. Grounded in the Module

2

13 LVTTL-O

Mod_NR

Module Not Ready; Indicating Module Operational Fault

2

14 LVTTL-O

RX_LOS

Receiver Loss Of Signal Indicator

2

15

GND

Module Ground

1

16

GND

Module Ground

1

17 CML-O

RD-

Receiver Inverted Data Output

18 CML-O

RD+

Receiver Non-Inverted Data Output

19

GND

Module Ground

1

20

VCC2

+1.8V Power Supply (Not required)

3