40G Ethernet Links; Infiniband QDR and DDR interconnects
Proprietary High Speed Interconnections; Data Center
Description
The 40 QSFP+ PSM4 10KM is a 4x10G hot-pluggable optical transceiver module. It is designed for 10km optical communication applications over single mode fiber using a wavelength of 1310nm via MPO connectors.
It is compliant with QSFP+ MSA, IEEE 802.3bm 40GBASE-PSM4.
It is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as high-performance computing networks, enterprise core and distribution layer applications, data centers.
Difference in Receive Power
between any two Lanes (OMA)
Prx,dif
5.0
dB
Signal Loss Assert Threshold
LOSA
-30
dBm
Signal Loss Deassert Threshold
LOSD
-15
dBm
LOS Hysteresis
LOSH
0.5
6
dB
Optical Return Loss Tolerance
ORL
-12
dBm
Receive Electrical 3 dB upper
Cutoff Frequency, each Lane
Fc
12
GHz
Note:
1. Transmitter wavelength, RMS spectral width and power need to meet the OMA minus TDP specs to guarantee
link performance.
2. The eye diagram is tested with 1000 waveform.
5. Recommended Power Supply Filter
6. Pin Assignment
7. Transceiver Block Diagram
Pin
Logic
Symbol
Max Unit Conditions
Ref.
1
GND
Ground
1
2
CML-I
Tx2n
Transmitter Inverted Data Input
3
CML-I
Tx2p
Transmitter Non-Inverted Data output
4
GND
Ground
1
5
CML-I
Tx4n
Transmitter Inverted Data Output
6
CML-I
Tx4p
Transmitter Non-Inverted Data Output
7
GND
Ground
1
8
LVTTL-I
ModSelL
Module Select
9
LVTTL-I
ResetL
Module Reset
10
VccRx
+3.3V Power Supply Receiver
2
11
LVCMOS-I/O
SCL
2-Wire Serial Interface Clock
12
LVCMOS-I/O
SDA
2-Wire Serial Interface Data
13
GND
Ground
1
14
CML-O
Rx3p
Receiver Inverted Data Output
15
CML-O
Rx3n
Receiver Non-Inverted Data Output
16
GND
Ground
1
17
CML-O
Rx1p
Receiver Inverted Data Output
18
CML-O
Rx1n
Receiver Non-Inverted Data Output
19
GND
Ground
1
20
GND
Ground
1
21
CML-O
Rx2n
Receiver Inverted Data Output
22
CML-O
Rx2p
Receiver Non-Inverted Data Output
23
GND
Ground
1
24
CML-O
Rx4n
Receiver Inverted Data Output
25
CML-O
Rx4p
Receiver Non-Inverted Data Output
26
GND
Ground
1
27
LVTTL-O
ModPrsL
Module Present
28
LVTTL-O
IntL
Interrupt
29
VccTx
+3.3V Power Supply Transmitter
2
30
Vcc1
+3.3V Power Supply
2
31
LVTTL-I
LPMode
Low Power Mode
32
GND
Ground
1
33
CML-I
Tx3p
Transmitter Inverted Data Output
34
CML-I
Tx3n
Transmitter Non-Inverted Data Output
35
GND
Ground
1
36
CML-I
Tx1p
Transmitter Inverted Data Output
37
CML-I
Tx1n
Transmitter Non-Inverted Data Output
38
GND
Ground
1
Note:
1.GND is the symbol for single and supply(power) common for QSFP modules, All are common within the QSFP module and all module voltages are referenced to this potential otherwise noted. Connect these directly to the host board signal common ground plane. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
2.VccRx, Vcc1 and VccTx are the receiver and transmitter power suppliers and shall be applied concurrently. Recommended host board power supply filtering is shown below. VccRx, Vcc1 and VccTx may be internally connected within the QSFP transceiver module in any combination. The connector pins are each rated for maximum current of 500mA.
8. Optical Interface Lanes and Assignment
The optical interface port is a male MPO connector. The four fiber positions on the left as shown in Figure 2,
with the key up, are used for the optical transmit signals (Channel 1 through4).
The fiber positions on the right are used for the optical receive signals (Channel 4 through 1).
The central four fibers are physically present.
9. Diagram Mechnical Drawing
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