Fortinet FN-TRAN-QSFP28-ER Compatible 100GBASE-ER4 Lite QSFP28 40km Module

Fortinet
QSFP28
100G
Duplex
40 km
Fortinet compatible FN-TRAN-QSFP28-ER 100G QSFP28 Module

Fortinet compatible FN-TRAN-QSFP28-ER - Key Features

  • Compatibility: Fortinet
  • Media Type: Single-Mode Fiber (SMF)
  • Connector: Double LC/UPC
  • Fiber Count: Duplex
  • Maximum Distance: 40 km
  • Average Link Budget: 22 dB
  • Tx Wavelength: 1310 nm
  • Supported Data Rate: 112 Gbps
  • DDM/DOM: Supported
  • Forward Error Correction (FEC): Host FEC Supported
  • Temperature Range: Standard 0°-70°C

Fortinet FN-TRAN-QSFP28-ER Price

Lead timeIn Stock - Ships Next Business Day
Standard recommended retail price ex VAT:
508.62
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Telecoms & Integrators Globally

Fortinet compatible FN-TRAN-QSFP28-ER 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
40 km
Average Link Budget
22 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
112 Gbps
Supported Ethernet Applications
100G Ethernet (103.125 Gbps)
Supported Fiber Channel Applications
4x 32G Fiber Channel (112.2Gbps)
Optical Transport Network (OTN) Applications
OTU4 (112 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
4 dBm
Extinction Ratio (Min)
4 dB
Receiver Type
APD Photodiode
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
-21 dBm
Average Receiver Sensitivity (Max) Each Lane
-18 dBm
Receiver Overload
-1 dBm
Temperature Range
Standard 0°-70°C
Storage Temperature
-40° to 85°C
Relative Humidity
5 to 85%
Power Consumption (Max)
4.5 W
Power
+3.3V single power supply
Compliance
CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, IEEE 802.3ba, IEEE 802.3bm, 100GBASE-ER4 Lite, 128GFC Gen 6, OTN OTU4, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8665

Fortinet compatible FN-TRAN-QSFP28-ER Datasheet

v2

Complete technical specifications and product details

Updated:Jan 16, 2026Format:PDF

Fortinet compatible FN-TRAN-QSFP28-ER Description

EdgeOptic's FN-TRAN-QSFP28-ER compatible is a Fortinet-coded 100GBASE-ER4 Lite QSFP28 transceiver built on our 100G-QSFP28-40 hardware platform. The module ships pre-programmed with the Fortinet vendor identifiers for the FN-TRAN-QSFP28-ER ordering code, so the optic identifies on FortiOS as the OEM transceiver.

Optically the module conforms to the 100GBASE-ER4 Lite specification. Four LAN-WDM channels at 1295.56, 1300.05, 1304.58 and 1309.14 nm each carry 25.78125 Gbps NRZ, multiplexed onto one duplex LC single-mode fiber pair. The transmitter is an EML array; the receiver is an APD array, providing the additional sensitivity that distinguishes ER4 Lite from a standard LR4 build. Optical budget is 22 dB with host FEC, 18 dB without. ER4 Lite is not an IEEE 802.3ba or 802.3bm subclause and is not a 100G Lambda MSA grade; it is a generic 100GBASE-ER4 Lite specification used across vendor catalogs.

Reach is 40km on G.652 SMF with host RS-FEC enabled. Host-side FEC is the gating requirement for the 40km reach; the optic itself is transparent to FEC and contains no internal FEC engine. Engineers planning data-center interconnect or campus core links should confirm the host port has RS-FEC available on the 100GE MAC and verify both ends match during commissioning.

The FN-TRAN-QSFP28-ER is intended for Fortinet appliances and switches with 100GE QSFP28 interfaces. Verify the optic against the Fortinet transceiver compatibility matrix for your specific appliance model and FortiOS release before deployment, as supported optic lists vary by hardware family and software revision.

QSFP28 MSA SFF-8665 and SFF-8636 management compliance covers the electrical and software interfaces. DDM/DOM telemetry surfaces TX power, RX power, bias current, voltage, and module temperature for fault isolation. The duplex LC connector accepts standard SMF patch cords. Power draw is bounded at 4.5 W maximum; the commercial 0 to +70 degC case-temperature range covers central-office and metro POP environments. Connector hygiene matters at ER4 Lite reach budgets; inspect and clean both end-faces before turn-up to avoid attenuation that erodes the FEC margin.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For FortiOS compatibility verification or volume pricing, contact our sales team.

Frequently Asked Questions

Does the FN-TRAN-QSFP28-ER compatible trigger the 'not certified by Fortinet' warning in FortiOS?

FortiOS prints a 'transceiver not certified by Fortinet' message for any optic outside the Fortinet-certified inventory. The warning is informational and does not block traffic; the link comes up and forwards normally on a coded module. Fortinet TAC excludes support for non-certified optics. The behavior, the FortiOS configuration knobs that control transceiver acceptance, and the Fortinet community thread context are covered in detail on our knowledge base article: the 'not certified by Fortinet' fix. For confirmation against your specific Fortinet appliance model and FortiOS release before deployment, contact our sales team.