Komodo Fiber Reference Guide
30
18
sfp_txd[1]
P4
1.5V PCML
Transmit Data In, positive
19
P3
1.5V PCML
Transmit Data In, negative
SFP+ module 4 (OP4)
2
sfp_txflt[0]
AJ23
3.3-V LVTTL
Transmitter Fault Indication
8
sfp_los[0]
R24
3.3-V LVTTL
Loss of Signal
5
sfp_scl[0]
AJ9
2.5 V
Serial I2C clock line
4
sfp_sda[0]
U9
2.5 V
Serial I2C data line
6
sfp_presn[0]
AN24
3.3-V LVTTL
Reset, active low
3
sfp_tx_dis[0]
AF7
2.5 V
Transmitter Disable
7
sfp_rs_rx[0]
AC11
2.5 V
Received Data rate select, low
selects reduced bandwidth
9
sfp_rs_tx[0]
AN7
2.5 V
Transmit Data rate select, low
selects reduced bandwidth
13
sfp_rxd[0]
W2
1.5V PCML
Received Data Out, positive
12
W1
1.5V PCML
Received Data Out, negative
18
sfp_txd[0]
V4
1.5V PCML
Transmit Data In, positive
19
V3
1.5V PCML
Transmit Data In, negative
Table 9: SFP+ pin assignments, signal name and functions
Near each SFP+ or QSFP module there are dual-color LEDs:
4 QSFP, dual color (green and yellow), active low LEDs
4 SFP+, dual color (green and yellow), active low LEDs
Board
reference
Signal Name
Arria V
GZ Pin
Number
I/O Standard
Description
D11
sfp_led_greenn[3]
AH10
2.5 V (Open drain)
User-defined LEDs
(intended for showing
transmit or receive activity
on the SFP+ module).
Driving logic 0 on the I\O
port turns the LED on;
driving high-z on the I\O
turns the LED off
sfp_led_yellown[3]
AH9
2.5 V (Open drain)
D12
sfp_led_greenn[2]
AG10
2.5 V (Open drain)
sfp_led_yellown[2]
AG9
2.5 V (Open drain)
D13
sfp_led_greenn[1]
AF10
2.5 V (Open drain)
sfp_led_yellown[1]
AB9
2.5 V (Open drain)
D14
sfp_led_greenn[0]
AF9
2.5 V (Open drain)
sfp_led_yellown[0]
AA9
2.5 V (Open drain)
D15
qsfp_led_greenn[3]
AF8
2.5 V (Open drain)
User-defined LEDs
(intended for showing
transmit or receive activity
on the QSFP module).
Driving logic 0 on the I\O
port turns the LED on;
driving high-z on the I\O
turns the LED off
qsfp_led_yellown[3]
AD9
2.5 V (Open drain)
D16
qsfp_led_greenn[2]
AE8
2.5 V (Open drain)
qsfp_led_yellown[2]
AC9
2.5 V (Open drain)
D17
qsfp_led_greenn[1]
AJ8
2.5 V (Open drain)
qsfp_led_yellown[1]
AA8
2.5 V (Open drain)
D18
qsfp_led_greenn[0]
AH8
2.5 V (Open drain)
qsfp_led_yellown[0]
Y9
2.5 V (Open drain)
Table 10: SFP+ and QSFP LEDs pin assignments, signal name and functions
Board Components
Board Components
