JGB-10SNAA1 JDS UNIPHASE, JGB-10SNAA1 Datasheet - Page 5

• Manufacturer Part Number: JGB-10SNAA1
• Manufacturer: JDS UNIPHASE

Specifications of JGB-10SNAA1

• Lead Free Status / RoHS Status: Not Compliant

Module Pin Definitions
Output Signal Definitions
MOD_DEF(0:2)
Pins 4, 5, and 6 define the data rate at which the installed GBIC is operating, as shown in the following table.
MOD_DEF(0:2) Serial ID Implementations
In the GBICs with serial ID, a two-wire serial EEPROM is used to hold 128 bytes of information that describe
some of the capabilities, standard interfaces, manufacturer, and other information relevant to the product.
The information stored in the EEPROM is protected so that it cannot be changed by the user. Tables describ-
ing the specific addresses and values of the serial ID data are included in Serial ID Data and Descriptions on
page 21. Operation of the serial ID function is described in Serial Module Definition Protocol (Serial ID) on
page 10. Signal timings necessary for proper operation of the serial ID function are shown in Serial ID Timing
Specifications on page 20.
The serial ID module requires both serial clock
(SCL) and serial data I/O (SDA) connections. These
signals are required to have pull up resistors (4.7 k
is the recommended value; however, a smaller
value may be needed in order to meet the serial ID’s
rise and fall time requirements). The following list
and figure show the necessary connections from an
interface to a GBIC to ensure the capability of read-
ing the serial ID data.
The serial clock (SCL) and the serial data (SDA)
lines appear as NC to the host system upon initial
power up.
GBIC.1063
03/06/02
MOD_DEF(0): Logic Low
MOD_DEF(1): SCL
MOD_DEF(2): SDA
MOD_DEF (0)
Pin 4
0
1
0
MOD_DEF (1)
Pin 5
1
0
1
MOD_DEF (2)
Pin 6
0
0
1
Expected Connections to GBIC MOD_DEF Pins
Interface
SCL
SDA
JGB-10SNAA1
JGB-10SYAA1
Host
Interpretation by Host
GBIC with Serial ID
Shortwave GBIC
Longwave GBIC
Fibre Channel GBIC
MOD_DEF(0)
MOD_DEF(1)
MOD_DEF(2)
JGB-10LNAA1
JGB-10LYAA1
GBIC
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