FIM37000/173 Fujitsu Compatible 100GBASE-ZR4 QSFP28 Transceiver
Fujitsu compatible FIM37000/173 - Key Features
- Compatibility: Fujitsu
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 80 km
- Average Link Budget: 30 dB
- Tx Wavelength: 1310 nm
- Supported Data Rate: 103.125 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
Fujitsu FIM37000/173 Price
In Stock - Ships Next Business DayFujitsu compatible FIM37000/173 Specifications
Form Factor | QSFP28 |
Modulation | NRZ (Non-Return to Zero) |
Media Type | Single-Mode Fiber (SMF) |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 80 km |
Average Link Budget | 30 dB |
TX Wavelength | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
RX Wavelength | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
Supported Data Rate | 103.125 Gbps |
Supported Ethernet Applications | 100G Ethernet (103.125 Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
Transmitter Type | EML Laser |
Tx Wave Bandwidth | 4 LAN WDM Seperated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm) |
Average Launch Power (Min) Each Lane | 2 dBm |
Average Launch Power (Max) Each Lane | 6.5 dBm |
Extinction Ratio (Min) | 6 dB |
Receiver Type | SOA+PIN |
RX Wave Bandwidth | 4 LAN WDM Seperated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm) |
Average Receiver Sensitivity (Min) Each Lane | -28 dBm |
Average Receiver Sensitivity (Max) Each Lane | -7 dBm |
Receiver Overload | 5.5 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 6.5 W |
Power | +3.3V single power supply |
Compliance | CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, MSA-extended from IEEE 802.3ba LR4, 100GBASE-ZR4, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8665 |
Fujitsu compatible FIM37000/173 Datasheet
v3Complete technical specifications and product details
Fujitsu compatible FIM37000/173 Description
EdgeOptic's FIM37000/173 compatible is a Fujitsu-coded 100GBASE-ZR4 QSFP28, the higher-power member of the FIM37000 family rated for 80 km on single-mode fiber. TX output is +3.5 dBm OMA per lane, 1 dB above the standard /172, with the same 30 dB optical link budget and the same 4-channel LAN-WDM grid every ZR4 uses.
Choose the /173 when the link has tight budget margin: aged outside-plant fiber, additional splice loss, cascaded patch panels in the path, or a long-haul span pushing the upper limit of 80 km. Same QSFP28 form factor as the /172, same wavelength plan, same receiver, same 5.5 W draw at 3.3 V. The only difference is TX output: /173 transmits at +3.5 dBm OMA where /172 transmits at +2.5 dBm OMA. On clean spans well under 80 km the /172 is the right pick to avoid receiver overload.
Four LAN-WDM channels at 1295.56, 1300.05, 1304.58, and 1309.14 nm, 25.78 Gbps each lane, 103.125 Gbps aggregate over two single-mode fibers (TX and RX) on an LC duplex connector. Cooled EML transmitters, SOA + PIN photodetector array, receiver sensitivity better than -28 dBm with overload at -5.5 dBm. NRZ direct-detection, DOM via the standard QSFP28 I2C interface. 100GBASE-ZR4 is MSA-extended from IEEE 802.3ba LR4 to reach 80 km.
Host RS-FEC is mandatory. ZR4 closes the 80 km link with RS(528,514) per IEEE 802.3 Clause 91 running on the host MAC; the module carries no internal FEC. Both ends must have RS-FEC enabled, otherwise the link will not stabilise. Verify the FEC setting on each port during commissioning; the default RS mode is correct on most modern 100G ZR4 host platforms.
FIM37000/173 was designed by Fujitsu Optical Components for FLASHWAVE transport equipment and shares a common platform design with the Fujitsu 100G QSFP28 ER4, so FLASHWAVE operators can re-use the same QSFP28 slot when upgrading from 40 km ER4 to 80 km ZR4. The two are not drop-in replacements on the wire: ZR4 mandates host RS-FEC at 80 km and draws 5.5 W; ER4 does not require host RS-FEC at its 40 km reach and runs at a lower power draw. Verify host configuration before swapping.
Operating temperature 0 to +70 °C commercial grade, 3.3 V single supply. With +3.5 dBm OMA TX power, short spans under about 15 km can drive the receiver into overload; insert a 12 dB LC inline attenuator on the receive side or run the /172 instead. Sibling Cisco QSFP-100G-ZR4-S and Arista QSFP-100G-ZR4 compatibles cover the same 80 km LAN-WDM ZR4 standard with vendor-coded EEPROM for those host platforms.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. To choose between the /173 and /172 for your specific span, contact our sales team.
Frequently Asked Questions
When should I choose the FIM37000/173 over the FIM37000/172?
When the link budget is tight. The /173 transmits at +3.5 dBm OMA per lane against the /172's +2.5 dBm; that 1 dB of extra TX margin matters on 80 km spans with aged fiber, additional splices, or cascaded patch panels eating into the budget. Both modules carry the same 30 dB link budget and 80 km rating, the same wavelength plan, the same SOA + PIN receiver, and the same 5.5 W power envelope. On clean spans well under 80 km the /172 is the better choice to avoid pushing the far-end receiver toward overload.
Can the FIM37000/173 replace a Fujitsu 100G ER4 module without an attenuator on a short link?
Physically the modules occupy the same QSFP28 slot (Fujitsu Optical Components designed the FIM37000 ZR4 family on a common platform with the 100G QSFP28 ER4), but the link becomes ZR4-to-ZR4 once both ends are swapped, and the host port profile has to change first: ZR4 mandates host RS-FEC (RS(528,514) per IEEE 802.3 Clause 91) where ER4 does not, so neither end will train without RS-FEC enabled on each port. Then check span length: on short ZR4-to-ZR4 links the /173's +3.5 dBm OMA can drive the far-end ZR4 receiver above its -5.5 dBm overload threshold. Insert a 12 dB LC inline attenuator on the receive side, or specify the /172 standard-power variant for that span.