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GBB-7520G Datasheet(PDF) 3 Page - Optoway Technology Inc

Part No. GBB-7520G
Description  1550 nm TX / 1310 nm RX , 5V / 1.25 Gbps Single-Mode WDM Gigabit Interface Converter (GBIC)
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Manufacturer  OPTOWAY [Optoway Technology Inc]
Direct Link  http://www.optoway.com.tw
Logo OPTOWAY - Optoway Technology Inc

GBB-7520G Datasheet(HTML) 3 Page - Optoway Technology Inc

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Optoway
GBB-7520G
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OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw
http: // www.optoway.com.tw
12/1/2005 V2.0
3
PIN ASSIGNMENT
PIN
Signal Name
Sequence
Description
1
RX-LOS
2
Receiver Loss of Signal, logic high, open collector compatible,
4.7K to 10K ohm pull-up to VCCT on host
2
RGND
2
Receiver Ground
3
RGND
2
Receiver Ground
4
MOD-DEF(0)
2
TTL Low
5
MOD-DEF(1)
2
SCL Serial Clock Signal
6
MOD-DEF(2)
2
SDA Serial Data Signal
7
TX-DIABLE
2
Transmitter Disable, logic high, open collector compatible
8
TGND
2
Transmitter Ground
9
TGND
2
Transmitter Ground
10
TX-FAULT
2
Transmitter Fault, logic high, open collector compatible, 4.7K to
10K ohm pull-up to VCCT on GBIC
11
RGND
1
Receiver Ground
12
-RX-DAT
1
Receiver Data Bar, Differential PECL, AC coupled
13
+RX-DAT
1
Receiver Data, Differential PECL, AC coupled
14
RGND
1
Receiver Ground
15
VCCR
2
Receiver +5V Supply
16
VCCT
2
Transmitter +5V Supply
17
TGND
1
Transmitter Ground
18
+TX-DAT
1
Transmitter Data, Differential PECL, AC coupled
19
-TX-DAT
1
Transmitter Data Bar, Differential PECL, AC coupled
20
TGND
1
Transmitter Ground
A sequence value of 1 indicates that the signal is in the first group to engage during plugging of a module. A sequence value of 2
indicates that the signal is the second and last group. The two guide pins on the connector are electrically connected to the transceiver circuit
ground. These two guide pins make contact with circuit prior to sequence 1 signals.
Module Definition
Module Definition
MOD-DEF(0)
PIN 4
MOD-DEF (1)
PIN 5
MOD-DEF (2)
PIN 6
Interpretation by
Host
4
TTL Low
SCL
SDA
Serial module definition
protocol
Module Definition 4 specifies a serial definition protocol. For this definition, upon power up, MOD-DEF(1:2) appear as no connector
(NC) and MOD-DEF(0) is TTL LOW. When the host system detects this condition, it activates the serial protocol. The protocol uses the
2-wire serial CMOS E
2PROM protocol of the ATMEL AT24C01A/02/04 family of components.


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