FCM-8520/8521-3 1000BASE-T GBIC Product Specification
F i n i s a r
II.
+5V Volt Electrical Power Interface
The FCM-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.
Referenced to GND.
Input Voltage
Maximum Voltage
Surge Current
V
cc
V
max
I
surge
4.5
5
5.5
6
450
V
V
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
GBIC Output LOW
GBIC Output HIGH
GBIC Input LOW
Symbol
V
OL
Units Notes/Conditions
V
4.7k to 10k pull-up to host_Vcc,
measured at host side of connector
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
V
IL
0
0.8
V
4.7k to 10k pull-up to Vcc,
measured at GBIC side of
connector
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
Page 3
Min
0
Max
0.5
GBIC Input HIGH
Finisar Corporation
Rev A, Feb 2003
FINISAR [ FINISAR CORPORATION. ]
