FTR-1631-XX DWDM GBIC Preliminary Product Specification
Finisar
II.
Electrical Power Interface
The GBIC specification calls for a range of 4.75V to 5.25 volts as described in Table 2.
The maximum voltage of 6V is not to be applied continuously.
Parameter
Supply Current
Inrush Current
Maximum Voltage
Input Voltage
Symbol
I
s
I
surge
V
max
V
cc
4.75
5.0
Min
Typ
250
Max
400
30
6
5.25
Units
mA
mA
V
V
Referenced to GND
Notes/Conditions
=300 msec above steady
state current
Table 2. Electrical Power Interface
III.
Low Speed Signals
RX_LOS, TX_DISABLE, and TX_FAULT are TTL signals as described in Table 3.
MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA) are open drain CMOS signals (see
section IX, “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 Revision 5.5
1
.
Parameter
GBIC Output LOW
GBIC Output HIGH
GBIC Input LOW
Symbol
V
OL
Min
0
Max
0.5
Units Notes/Conditions
V
GBIC Input HIGH
4.7k to 10k pull-up to host_Vcc,
measured at host side of connector
V
OH
host_Vcc -
host_Vcc +
V
4.7k to 10k pull-up to host_Vcc,
0.5
0.3
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
©
Finisar Corporation
Rev J, August 2004
PRELIMINARY and Confidential
Page 4
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