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200G QSFP56 Direct Attach Cable - PAM4 Datasheet
Brand Name:KOLORAPUS
Sample: Available
Unit price<=$15 ,free sample and need to pay the freight.
Unit price >$15,need to pay the double sample fee and freight.
MOQ: >=$7000
Origin: China
Certification:ISO/3C/CE/ROHS/UL
Package: Carton
Payment Method:T/T
General Description
QSFP56 passive copper cable assembly feature eight differential copper pairs,providing four data transmission channels at speeds up to 56Gbps(PAM4) per channel,and meets 200G Ethernet and InfiniBand Data Rate(EDR) requirements.Available in a broad rang of wire gages-from 26AWG through 30AWG-this 200G copper cable assembly features low insertion loss and low cross talk.
QSFP56 uses PAM4 signals for transmission, which doubles the rate. However, there are more stringent requirements for cable insertion loss. For detailed requirements, please see High Speed Characteristics.
Designed for applications in the data center,networking and telecommunications markets that require a high speed,reliable cable assembly,this next generation product shares the same mating interface with QSFP+ form factor ,making it backward compatible with existing QSFP ports.
Features and Benefits
l Compatible with IEEE 802.3bj and IEEE 802.3cd
l In accordance with the paging function in the protocol SFF-8636, paging can be selected 00H or 02H in 127 bytes
l Supports aggregate data rates of 200Gbps(PAM4)
l Optimized construction to minimize insertion loss and cross talk
l Backward compatible with existing QSFP+ connectors and cages
l Pull-to-release slide latch design
l 26AWG through 30AWG cable
l Straight and break out assembly configurations available radiation
l Customized cable braid termination limits EMI radiation
l Customizable EEPROM mapping for cable signature
l RoHS omplia
Product Applications
l Switches,servers and routers
l Data Center networks
l Storage area networks
l High performance computing
l Telecommunication and wireless infrastructure
l Medical diagnostics and networking
l Test and measurement equipment
Industry Standards
l 200G Ethernet(IEEE 802.3cd)
l InfiniBand EDR
Technical Documents
l 108-32081 QSFP28 Copper Module Direct Attach Cable Assembly
High Speed Characteristics
Parameter | Symbol | Min | Typical | Max | Unit | Note |
Differential Impedance | TDR | 90 | 100 | 110 | Ώ | |
Insertion loss | SDD21 | -16.06 | dB | At 13.28 GHz | ||
Differential Return Loss | SDD11 SDD22 | See 1 | dB | At 0.05 to 4.1 GHz | ||
See 2 | dB | At 4.1 to 19 GHz | ||||
Common-mode to common-mode output return loss | SCC11 SCC22 | -2 | dB | At 0.2 to 19 GHz | ||
Differential to common-mode return loss | SCD11 SCD22 | See 3 | dB | At 0.01 to 12.89 GHz | ||
See 4 | At 12.89 to 19 GHz | |||||
Differential to common Mode Conversion Loss | SCD21-IL | -10 | dB | At 0.01 to 12.89 GHz | ||
See 5 | At 12.89 to 15.7 GHz | |||||
-6.3 | At 15.7 to 19 GHz | |||||
Notes: 1. Reflection Coefficient given by equation SDD11(dB) < -16.5 + 2 × SQRT(f ), with f in GHz 2. Reflection Coefficient given by equation SDD11(dB) < -10.66 + 14 × log10(f/5.5), with f in GHz 3. Reflection Coefficient given by equation SCD11(dB) < -22 + (20/25.78)*f, with f in GHz 4. Reflection Coefficient given by equation SCD11(dB) < -15 + (6/25.78)*f, with f in GHz 5. Reflection Coefficient given by equation SCD21(dB) < -27 + (29/22)*f, with f in GHz
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Pin Descriptions
QSFP56 Pin Function Definition
Pin | Logic | Symbol | Description |
1 | GND | Ground | |
2 | CML-I | Tx2n | Transmitter Inverted Data Input |
3 | CML-I | Tx2p | Transmitter Non-Inverted Data Input |
4 | GND | Ground | |
5 | CML-I | Tx4n | Transmitter Inverted Data Input |
6 | CML-I | Tx4p | Transmitter Non-Inverted Data Input |
7 | GND | Ground | |
8 | LVTTL-I | ModSelL | Module Select |
9 | LVTTL-I | ResetL | Module Reset |
10 | Vcc Rx | +3.3V Power Supply Receiver | |
11 | LVCMOS- | SCL | 2-wire serial interface clock |
I/O | |||
12 | LVCMOS- | SDA | 2-wire serial interface data |
I/O | |||
13 | GND | Ground | |
14 | CML-O | Rx3p | Receiver Non-Inverted Data Output |
15 | CML-O | Rx3n | Receiver Inverted Data Output |
16 | GND | Ground | |
17 | CML-O | Rx1p | Receiver Non-Inverted Data Output |
18 | CML-O | Rx1n | Receiver Inverted Data Output |
19 | GND | Ground | |
20 | GND | Ground | |
21 | CML-O | Rx2n | Receiver Inverted Data Output |
22 | CML-O | Rx2p | Receiver Non-Inverted Data Output |
23 | GND | Ground | |
24 | CML-O | Rx4n | Receiver Inverted Data Output |
25 | CML-O | Rx4p | Receiver Non-Inverted Data Output |
26 | GND | Ground | |
27 | LVTTL-O | ModPrsL | Module Present |
28 | LVTTL-O | IntL | Interrupt |
29 | Vcc Tx | +3.3V Power supply transmitter | |
30 | Vcc1 | +3.3V Power supply | |
31 | LVTTL-I | LPMode | Low Power Mode |
32 | GND | Ground | |
33 | CML-I | Tx3p | Transmitter Non-Inverted Data Input |
34 | CML-I | Tx3n | Transmitter Inverted Data Input |
35 | GND | Ground | |
36 | CML-I | Tx1p | Transmitter Non-Inverted Data Input |
37 | CML-I | Tx1n | Transmitter Inverted Data Input |
38 | GND | Ground |
Mechanical Specifications
The connector is compatible with the SFF-8436 specification.
Regulatory Compliance
Feature | Test Method | Performance |
Electrostatic Discharge (ESD) to the Electrical Pins |
MIL-STD-883C Method 3015.7 |
Class 1(>2000 Volts) |
Electromagnetic Interference(EMI) | FCC Class B | Compliant with Standards |
CENELEC EN55022 Class B | ||
CISPR22 ITE Class B | ||
RF Immunity(RFI) |
IEC61000-4-3 | Typically Show no Measurable Effect from a 10V/m Field Swept from 80 to 1000MHz |
RoHS Compliance | RoHS Directive 2011/65/EU and it's Amendment Directives (EU) 2015/863 | RoHS (EU)2015/863 compliant |
REACH Compliance | REACH Regulation (EC) No 1907/2006 | REACH (EC) No 1907/2006 compliant |