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FCL-8520/8521-3 1000BASE-T GBIC Product Specification
F i n i s a r
II.
+5V Volt Electrical Power Interface
The FCL-8520/8521-3 has an extended input voltage range of 4.5 to 5.5 V, compared to
the GBIC standard of 4.25 to 5.25 V. The 6V maximum voltage is not allowed for
continuous operation.
+5 Volt Electrical Power
Interface
Parameter
Supply Current
Symbol
I s
Min
Typ
310
Max
375
Units
mA
Notes/Conditions
1.7W max power over
full range of voltage
and temperature.
See Note 1.
Input Voltage
V cc
4.5
5
5.5
V
Referenced to GND.
Maximum Voltage
V max
6
V
Surge Current
I surge
450
mA
Hot plug. See Note 1.
Table 2. +5 Volt electrical power interface
Note:
1.
Caution : Power consumption and inrush current are higher than the specified
values in the GBIC Specification Rev 5.5 1 .
III. Low-Speed Signals
RX_LOS is a TTL signals as described in Table 3 and 4. MOD_DEF(1) (SCL) and
MOD_DEF(2) (SDA), are open drain CMOS signals (see section VII, “Serial
Communication Protocol”). Both MOD_DEF(1) and MOD_DEF(2) must be pulled up to
host_Vcc. For more detailed information, see sections 5.3.1 – 5.3.8 in the GBIC
Specification Rev. 5.5 1 .
Low-Speed Signals,
Electronic Characteristics
Parameter
Symbol
Min
Max
Units Notes/Conditions
GBIC Output LOW
V OL
0
0.5
V
4.7k to 10k pull-up to host_Vcc,
measured at host side of connector
GBIC Output HIGH
V OH
host_Vcc - 0.5 host_Vcc + 0.3
V
4.7k to 10k pull-up to host_Vcc,
measured at host side of connector
GBIC Input LOW
V IL
0
0.8
V
4.7k to 10k pull-up to Vcc,
measured at GBIC side of
connector
GBIC Input HIGH
V IH
2
Vcc + 0.3
V
4.7k to 10k pull-up to Vcc,
measured at GBIC side of
connector
Table 3. Low-speed signals, electronic characteristics
? Finisar Corporation
Rev A, February 2006
Page 3
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