SFP28 DAC Cable Copper 25G Twinax Cables 3M Cisco Compatible
Cisco Compatible SFP-H25G-CU3M 25G SFP28 Passive Direct Attach Copper Twinax Cable 3M
Olinkcom's SFP28 passive cable assemblies are high performance, cost effective I/O solutions for 25G Ethernet. SFP28 copper cables allow hardware manufactures to achieve high port density, configurability and utilization at a very low cost and reduced power budget
Parameter | Symbol | Min | Typ | Max | Units | Notes | |
Differential Impedance | RIN,P-P | 90 | 100 | 110 | Ω | ||
Insertion loss | SDD21 | 8 | 22.48 | dB | At 12.8906 GHz | ||
Differential Return Loss
| SDD11 | 12.45 | See 1 | dB | At 0.05 to 4.1 GHz | ||
SDD22 | 3.12 | See 2 | dB | At 4.1 to 19 GHz | |||
Common-mode to common-mode output return loss | SCC11 |
2 |
dB |
At 0.2 to 19 GHz | |||
SCC22 | |||||||
Differential to common-mode return loss | SCD11 | 12 | See 3 |
dB
| At 0.01 to 12.89 GHz | ||
SCD22 | 10.58 | See 4 | At 12.89 to 19 GHz | ||||
Differential to common Mode Conversion Loss |
SCD21-IL | 10 | At 0.01 to 12.89 GHz | ||||
See 5 | dB | At 12.89 to 15.7 GHz | |||||
6.3 | At 15.7 to 19 GHz | ||||||
Channel Operating Margin | COM | 3 | dB |
Notes:
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 6/6 | RoHS 6/6 compliant |
Pin | Logic | Symbol | Description |
1 | VeeT | Module Transmitter Ground | |
2 | LVTTL-O | Tx_Fault | Module Transmitter Fault |
3 | LVTTL-I | Tx_Disable | Transmitter disable; Turns off transmitter laser output |
4 | LVTTL-I/O | SDA | 2-wire Serial Interface Data Line (Same as MOD-DEF2 in INF-8074i) |
5 | LVTTL-I/O | SCL | 2-wire Serial Interface Clock (Same as MOD-DEF1 in INF-8074i) |
6 | Mod_ABS | Module Absent, connected to VeeT or VeeR in the module | |
7 | LVTTL-I | RS0 | Rate Select 0, optionally controls SFP+ module receiver |
8 | LVTTL-O | Rx_LOS | Receiver Loss of Signal Indication (In FC designated as Rx_LOS and in Ethernet designated as Signal Detect) |
9 | LVTTL-I | RS1 | Rate Select 1, optionally controls SFP+ module transmitter |
10 | VeeR | Module Receiver Ground | |
11 | VeeR | Module Receiver Ground | |
12 | CML-O | RD- | Receiver Inverted Data Output |
13 | CML-O | RD+ | Receiver Non-Inverted Data Output |
14 | VeeR | Module Receiver Ground | |
15 | VccR | Module Receiver 3.3 V Supply | |
16 | VccT | Module Transmitter 3.3 V Supply | |
17 | VeeT | Module Transmitter Ground | |
18 | CML-I | TD+ | Transmitter Non-Inverted Data Input |
19 | CML-I | TD- | Transmitter Inverted Data Input |
20 | VeeT | Module Transmitter Ground |
Mechanical Specifications
The connector is compatible with the SFF-8432 specification.
Ordering Information
Part Number | Description |
OLSP02XC-CDM3 | SFP28, up to 25.781 Gb/s,Copper Cable, 0~70℃, 3M |