100GBASE-ER4 QSFP28 Optical Transceiver Module
FEATURES
QSFP28 MSA compliant
Hot pluggable 38 pin electrical interface
4 LAN-WDM lanes MUX/DEMUX design
4x25G electrical interface
Maximum power consumption 5W
LC duplex connector
Supports 103.125Gb/s aggregate bit rate
Up to 40km transmission on single mode fiber without FEC
Operating case temperature: 0℃ to 70℃
Single 3.3V power supply
RoHS 2.0 compliant
APPLICATIONS
1. l 100GE Ethernet
2. l Telecom networking
3. l Data Center Interconnect
Description
PACBTECH’s PAC-100G-ER4 module is designed for 40km optical communication applications.
This module contains 4-lane optical transmitter, 4-lane optical receiver and module management block
including 2 wire serial interface. The optical signals are multiplexed to a single-mode fiber through an
industry standard LC connector. A block diagram is shown in Figure 1.
Mechanical Dimensions

Part Number | Product Description |
PAC-QSFP28-ER4 | QSFP28, 100Gbps, ER4, SM, 40km, 0ºC ~ +70ºC, With DDM |