Juniper QSFPP-40GBASE-ER4 (740-059185) Compatible QSFP

Juniper
QSFP+
40G
Duplex
40 km
Juniper QSFPP-40GBASE-ER4 (740-059185) Compatible QSFP

Juniper compatible QSFPP-40GBASE-ER4 - Key Features

  • Compatibility: Juniper
  • Media Type: Single-Mode Fiber (SMF)
  • Connector: Double LC/UPC
  • Fiber Count: Duplex
  • Maximum Distance: 40 km
  • Guaranteed Link Budget: 19 dB
  • Tx Wavelenght: CWDM 4 Ch
  • Supported Data Rate: 44.8 Gbps
  • DDM/DOM: Supported
  • Temperature Range: Standard 0°-70°C

Juniper QSFPP-40GBASE-ER4 Price

SKUSKU:40G-QSFP-40-JU
Lead timeMade to Order - 2 Weeks
Standard recommended retail price ex VAT:
305.24
Choice of 0+
Telecoms & Integrators Globally

Juniper compatible QSFPP-40GBASE-ER4 Specifications

Form Factor
QSFP+
Modulation
NRZ (Non-Return to Zero)
Media Type
Single-Mode Fiber (SMF)
Connector
Double LC/UPC
Fiber Count
Duplex
Maximum Distance
40 km
Guaranteed Link Budget
19 dB
TX Wavelenght
4-channel CWDM (1271/1291/1311/1331 nm)
RX Wavelenght
4-channel CWDM (1271/1291/1311/1331 nm)
Supported Data Rate
44.8 Gbps
Supportet Ethernet Applications
40G Ethernet (41.25Gbps)
Optical Transport Network (OTN) Applications
OTU3 (43.01Gbps), OTU3e2 (44.58Gbps)
SDH/SONET Standards
STM-256 (39.81 Gbps)
DDM/DOM
Supported
Transmitter Type
DFB Laser
Tx Wave Bandwidth
4 WDM Seperated 1310nm Lanes (13 nm (1271, 1291, 1311, 1331))
Average Launch Power (Min) Each Lane
-2.7 dBm
Average Launch Power (Max) Each Lane
4.5 dBm
Receiver Type
APD Photodiode
Average Receiver Sensitivity (Min) Each Lane
-19 dBm
Average Receiver Sensitivity (Max) Each Lane
-7 dBm
Receiver Overload
-7 dBm
Temperature Range
Standard 0°-70°C
Storage Temperature
-40° to 85°C
Relative Humidity
5 to 85%
Power
+3.3V single power supply
Compliance
IEEE 802.3ba, CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, INF-8438i, QSFP+ MSA, RoHS, SFF-8436

Juniper compatible QSFPP-40GBASE-ER4 Datasheet

v2

Complete technical specifications and product details

Updated:Jan 16, 2026Format:PDF

Juniper compatible QSFPP-40GBASE-ER4 Description

Juniper compatible QSFPP-40GBASE-ER4 (740-059185) is QSFP (Quad Small Form-factor Pluggable) Transceiver, operating over Double Fiber Single-Mode Fiber (SMF.) optical cable. It has minimum guaranteed optical budget of 16.3 dB, with in most cases is enough to reach about 40km distance.However, distance is just indicative parameter calculated for comfort of identification. Eventually we calculate distance taking in account minimal optical budget and average attenuation of optical cabling in industry. QSFPP-40GBASE-ER4 (740-059185) compatible transceiver use top quality DFB Laser transmitter operating at nominal wavelength 1310 nm. and 1310 nm. APD Photodiode receiver. It support DDM/DOM optical diagnostics, which provide diagnostic information about the present operating conditions. Juniper compatible QSFPP-40GBASE-ER4 (740-059185) QSFP (Quad Small Form-factor Pluggable) operates in Standard 0°-70°C temperature range and has Double LC interface. QSFP ER4 support 39.81 – 44.8 Gbps data rate and such applications as 40G Ethernet (41.25Gbps), STM-256 (39.81 Gbps), OTU3 (43.01Gbps), OTU3e2 (44.58Gbps). Juniper QSFPP-40GBASE-ER4 (740-059185) compatible QSFP ER4 optical transceiver is multi-purpose module used in number of different places of today’s networking. Consequently, most popular applications are Internet Service Provider (ISP) Fiber To The Home aggregation and backbone, Mobile operator core and back-haul 40G applications, Data Center networking site interconnections and other optical links.

QSFPP-40GBASE-ER4 (740-059185) Juniper compatible Transceiver is based on our 40G-QSFP-40 product, which is fully compliant with QSFP+ Multi Source Agreement (MSA) SFF-8436 standard, product safety standards and is CE/RoHS certified. We perform compatibility tests for QSFPP-40GBASE-ER4 (740-059185) Juniper compatible Transceiver with the most recent Juniper networking equipment platforms, allowing us to encode transceiver EEPROM memory to be compatible with and work seamlessly with Juniper platforms! Because we are committed to providing high-quality service, we conduct rigorous quality checks before delivering our products. As a result, we perform optical parameter measurements, connector cleanness tests, and EEPROM memory data validation tests on our products. Feel free to Contact us - We will gladly learn about your needs and provide you with the best alternative of QSFPP-40GBASE-ER4!