1Gb Ethernet to HSSI Serial
The LHM1000 Ethernet Converter is a Carrier Ethernet Service delivery unit, offering end to end management using 802.3ah OAM, and customer site conversion from twisted pair 10/100/1000BaseT and 100Base/1000Base-X fibre to HSSI Serial leased line services.
- Ethernet Converter of 10Mb/100Mb/1Gb Ethernet to HSSI Serial
- Dual RJ45 plus single SFP flexible media port, offering local Switched Ethernet connections up to 1Gbps
- Mini Jumbo Frame Support (up to 2048bytes)
- Fully manageable via Serial Terminal (user-friendly context-sensitive menu system), Telnet/SSH, SNMP and Web Browser
- 802.3ah Carrier Ethernet OAM protocol support, for Connectivity Management
- TACACS+ for secure authentication
- 802.1q VLAN support (pass-through and tag switching)
- Traffic prioritisation based on 802.1p and/or DSCP markers
- Bandwidth control per Ethernet Port and Priority queue (also for Broadcast traffic), enabling differentiated traffic QoS
- Link Loss Forwarding
- RSTP support
- LED status indicators
- Alarm Extension Relay
- Robust metal casing, made in the UK to high quality standards
- Integral auto-sensing power supply (100-250V AC or -48V DC versions)
- 12V & 24V DC PSU variants also available on request
- Easy to install & maintain
- Rack mounting kits for 2 or 18 units available
The LHM1000 is a switching media converter operating in store and forward mode. The LHM1000 supports auto-negotiation, and auto MDI/MDIX cross-over switching on the copper interface.
To ensure reliable operation, the LHM1000 supports Link Loss Forwarding, whereby a fault on the serial port will automatically force a link down on the user ports to indicate to the attached device that there is a link problem.
The LHM1000 supports the transmission of Mini Jumbo frames (2048bytes).
The LHM1000 supports 802.3ah OAM which means that the Ethernet service can be managed and monitored right up to the customer delivery point. The future LHM1000 software development roadmap includes support for LACP, IEEE802.1ag and Y.1731 OAM standards.
The LHM1000 is provided with an SFP module with LC connector supporting for example 1000Base-SX for 550 metres operation over multi-mode fibre, or 1000Base-LX for up to 10km over a single-mode fibre.
The LHM1000 is ordered without an SFP fitted, although customers can subsequently change their interface type. Please contact Metrodata for price and availability of SFP modules including long haul, 1550nm, bi-directional and CWDM.
The LHM1000 is available in a choice of 100-250 VAC or -48 VDC integrated power supplies.
The LHM1000 is part of a wide range of LAN extension products from Metrodata.
This application shows an LHM1000 unit being used as the Ethernet demarcation device to deliver a Carrier Ethernet service from an MPLS core network. A wide choice of Ethernet connectivity is available for the user via the 10/100/1000baseT and SFP fibre ports. OAM support means that the LHM1000 can be remotely managed by the central network management system using standards based OAM packets.
This application shows how a pair of LHM1000 units can be used to offer Ethernet service demarcation and LAN Extension functionality either over a HSSI Serial circuit.
WAN Port Specs
|Presentation||50 way AMP|
|Line Rate||52Mbps (max)|
1000Base-X Fibre Interface
|Interface||Dual LC connectors|
SFP 1000Base SX
|TX Power||-9.5 to -3dBm|
|Max Rx input power||0dBm|
|Rx sensitivity||-17 to 0dBm|
|Optical loss budget||7.5dB (550m)|
SFP 1000Base LX
|TX Power||-9.5 to -3dBm|
|Max Rx input power||-3dBm|
|Rx sensitivity||-19 to -3dBm|
|Optical loss budget||9.5dB (10km)|
10/100/1000BaseT Electrical Interface
|Port||2x 10/100/1000BaseT with auto-negotiation and Jumbo frame support|
|Interface||RJ45 (Auto Crossover MDI/MDIX)|
|Operating mode||Auto Negotiate, 10M, 100M, 1000M, Full Duplex, Half Duplex|
|LEDs||Link, Activity, Speed|
Compliance & Approvals
|IEC60825-1 Class 1 Laser Eye Safety|
|Temperature||0 - 50 deg C|
|Humidity||0 - 95% RH, non condensing|
|Storage Temp||-40 to 100 deg C|
|Pressure||86 - 106 kPa|
Power Supply Options
|-48 VDC||-40 to -72V DC, 125 - 65 mA|
|AC Mains||100 - 250V AC, 50 - 60Hz, 60 - 25mA|
|Power Consumption||6 watts approx when operating|
|Type||Modem, 1U high without feet, IP30C|
Dimensions W x D x H (mm)
|Rack mount||202 x 132 x 44 (without feet)|
|Tabletop||202 x 132 x 48 (with feet)|
|Product||AC Mains||DC Power|
|2 unit rack mount kit||80-05-256||80-05-256|
|18 unit rack mount kit||80-05-250||80-05-255|
Product variants with 12V to 24V DC operation are also available on request.
If you require further information please contact our sales team with your requirements.
|Commonly used SFP transceivers||Order Code||Description|
|10Gbps Multimode 550m 300nm||80-38-011|| Multimode interface |
fibre optic loss budget 5.1dB
|10Gbps Singlemode 10km 1300nm||80-38-031|| Singlemode interface |
fibre optic loss budget 6.3dB
|1Gbps Multimode 550m 850nm||80-31-011|| Multimode interface |
fibre optic loss budget 7.5dB
|1Gbps Singlemode 10km 1300nm||80-31-031|| Singlemode interface |
fibre optic loss budget 12dB
|1Gbps Singlemode 80km 1550nm||80-31-042|| Singlemode interface |
fibre optic loss budget 24dB
|100Mbps Multimode 2km 1300nm||80-30-021|| Multimode interface |
fibre optic loss budget 12dB
|100Mbps Singlemode 10km 1300nm||80-30-031|| Singlemode interface |
fibre optic loss budget 17dB
Many other transceivers are available on request including long haul, 1550nm, CWDM, DWDM and bi-directional.
Whilst the MetroCONNECT product range uses industry standard user exchangeable SFP and SFP+ transceivers, it is recommended that these are purchased from Metrodata to guarantee their specification and compatibility with each other.
If you require another transceiver please contact our sales team with your requirements.
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