Approved Optics Approved IBM 90Y9412 User Manual
Page 4
Approved Optics, Inc.
www.ApprovedOptics.com
Page 4 of 9
90Y9412-A
10GBASE-LR SFP+ SMF
1310NM 10KM REACH LC
PIN
Logic
Symbol
Name/Description
Unit
1
VEET Module
transmitter
Ground
1
2
LVTTL-O
TX_Fault Module
Transmitter
Fault
3
LVTTL-I
TX_Dis
Transmitter Disable; Turns off
transmitter laser output
4
LVTTL-I/O
SDA 2-Wire
Serial
Interface
Data
Line
2
5
LVTTL-I
SCL 2-Wire
Serial
Interface
Clock
2
6
MOD_DEF0
Module Definition, Grounded in
the module
7
LVTTL-I
RS0 Receiver
Rate
Select
8
LVTTL-O
RX_LOS
Receiver Loss of Signal
Indication Active LOW
9
LVTTL-I
RS1
Transmitter Rate Select (not
used)
10
VeeR Module
Receiver
Ground
1
11
VeeR Module
Receiver
Ground
1
12
CML-O
RD- Receiver
inverted
Data
Output
13
CML-O
RD+ Receiver
Data
Output
(not
used)
14
VeeR Module
Receiver
Ground
1
15
VccR Module
Receiver
3.3
V
Supply
16
VccT Module
Receiver
3.3
V
Supply
17
VccT Module
Transmitter
Ground
1
18
CML-I
TD+
Receiver Non-Inverted Data
output
19
CML-I
TD- Transmitter
Inverted
Data
Input
20
VeeT Module
Transmitter
Ground
1
Note:
1. Module ground pins GND are isolated from the module case.
2. Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on
the host bard.