FCM-8520-3 Finisar Corporation, FCM-8520-3 Datasheet - Page 2

• Manufacturer Part Number: FCM-8520-3
• Description: TX/RX Optical Fiber 1250Mbps
• Manufacturer: Finisar Corporation
• Type: TX/RXr

Specifications of FCM-8520-3

• Rise Time: 0.25(Typ) ns
• Operating Supply Voltage: 4.5 to 5.5 V

FCM-8520/8521-3 1000BASE-T GBIC Product Specification
I.
“Sequence” indicates the order in which pins make contact when the device is hot
plugged. For additional information, see “Table 3: Signal Definitions” in the GBIC
Specification Revision 5.5.
 Finisar Corporation
Rev A, Feb 2003
GBIC to Host Connector Pin Out
Note: RX_LOS is used for link indication on the FCM-
8520-3, and is internally grounded on the FCM-8521-3
Table 1. GBIC to host connector pin assignment
Pin Name
RX_LOS*
GND
GND
MOD_DEF(0)
MOD_DEF(1)
MOD_DEF(2)
TX_DISABLE
GND
GND
GND
GND
-RX_DAT
+RX_DAT
GND
V
V
GND
+TX_DAT
-TX_DAT
GND
CC
CC
1
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Sequence
2
2
2
2
2
2
2
2
2
2
1
1
1
1
2
2
1
1
1
1
F i n i s a r
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