GE 1000Base-LH Module Combination (1 Port) (256-MB Memory)

Line module labelGE/FE
I/O module labelGE I/O SFP
Number of I/O ports
  • 1 active, 1 redundant
Software release
  • First supported: 5.0.0
  • Final supported: 16.0.x
Description
  • 130 W
  • Gigabit Ethernet
  • 256 MB of memory
  • The 128-MB version has reached end-of-life.
  • The I/O module uses a range of small form-factor pluggable (SFP) transceivers to support different modes and cabling distances.
  • Uses either optical or copper SFPs.
    • The optical transceivers are 1000Base-LX/LH compliant.
    • The copper transceivers are 1000Base-T compliant.
  • Single-strand SFPs can be used. These SFPs work in pairs and require a matching SFP at the opposite end of the Ethernet connection. For example, an SFP rated at TX 1310, RX 1550 must be paired with an SFP rated TX 1550, RX 1310 with the same maximum operating range. See the following corresponding table (Single-strand SFPs Pairing) for more information.
Type
  • EFA ASIC
Capability
  • Ethernet (IEEE 802.3z)
  • 1000Base-LH
Software features
  • See ERX Module Guide, Appendix A, Module Protocol Support for information about the layer 2 and layer 3 protocols and applications that this module combination supports.
Model compatibility
  • ERX7xx models
  • ERX14xx models
  • ERX310 router
SRP module compatibility
  • SRP-5G+
  • SRP-10G
  • SRP-40G
  • SRP-40G PLUS
  • SRP-SE10G
Module redundancy support
  • Not applicable
Cables and connectors (copper SFP)
  • Maximum range is 100 meters on CAT5 cable.
Cables and connectors (LX/LH)
  • LC full duplex
  • Tx power:
    • min: –9.5 dBm
    • max: –3 dBm
  • Center wavelength: 1300 nm
  • Rx input power:
    • min: –20 dBm
    • max: –3 dBm
  • Rated for 10 km (6.2 miles) over 10-micron core cable
  • See ERX Hardware Guide, Chapter 5, Cabling ERX Routers for more information.
LEDs
  • See ERX Module Guide, Appendix B, Module LEDs.
Alarms, errors, and events
  • See Monitoring Ethernet Interfaces in JunosE Physical Layer Configuration Guide, Chapter 5, Configuring Ethernet Interfaces.

Table 2: Single-strand SFPs Pairing

Fiber TypeNominal Wavelength (nm)Maximum Operating Range (kilometers)
9 microns
  • TX 1310, RX 1550
  • Pairs with TX 1550 / RX 1310
10 (6.2 miles), matching SFP must have the same operating range
9 microns
  • TX 1550 / RX 1310
  • Pairs with TX 1310, RX 1550
10 (6.2 miles), matching SFP must have the same operating range
9 microns
  • TX 1310, RX 1490
  • Pairs with TX 1490 / RX 1310
10 (6.2 miles), matching SFP must have the same operating range
9 microns
  • TX 1490 / RX 1310
  • Pairs with TX 1310, RX 1490
10 (6.2 miles), matching SFP must have the same operating range
9 microns
  • TX 1310, RX 1550
  • Pairs with TX 1550 / RX 1310
40 (24.85 miles), matching SFP must have the same operating range
9 microns
  • TX 1550, RX 1310
  • Pairs with TX 1310 / RX 1550
40 (24.85 miles), matching SFP must have the same operating range