E3 34.368Mbps G.703 to HSSI Converter
The Metrodata FM4900 DSU is used to interface high performance DTE equipment such as bridges or routers with HSSI interfaces to 34.368Mbps E3 leased line services.
- High Spec E3 G.703 34.368Mbps interface
- HSSI port for router connection
- External Alarm relay port
- Local management port for configuration and diagnostics
- Remote configuration and testing of units across the network
- Comprehensive performance monitoring of both device and line
- Built to European Standards
- Optional remote management using SNMP and Telnet
- Optional -48 volt DC supply
The FM4900 offers conversion between an HSSI serial interface and an E3 line interface with BNC connectors. The FM4900 should NOT be used in conjunction with cell based E3 equipment, such as some router cards.
The FM4900 has several LEDs for displaying current status, plus comprehensive configuration and diagnostics via a menu driven user interface.
Using a dedicated management channel pairs of FM4900 units can communicate with each other, allowing configuration and status checking of the remote unit.
The optional Metrodata LM1100 SNMP enabler permits remote management via either Telnet or SNMP.
- HSSI router to E3 34Mbps G.703 leased line conversion
- Connecting pairs of HSSI routers over an E3 34Mbps G.703 leased line
- LM1100 SNMP Enabler used with Management Data link to manage a pair of FM4900 units
This application shows an FM4900 connecting an HSSI router card to an E3 34.368Mbps leased line, such as a BT Megastream-34 service. HSSI serial ports are often the most cost effective high speed WAN port available on routers. Telecom carriers provision E3 34.368Mbps services with G.703 connectivity. Care must be taken to ensure that this equipment is not used in conjunction with cell based E3 equipment, such as some router cards.
This application shows a pair of FM4900 units connecting a pair of HSSI routers via an E3 34.368Mbps leased line, such as a BT Megastream-34 service. HSSI serial ports are often the most cost effective high speed WAN port available on routers. Telecom carriers provision E3 34.368Mbps services with G.703 connectivity. Care must be taken to ensure that this equipment is not used in conjunction with cell based E3 equipment, such as some router cards.
This application show a remote network management centre controlling the head office FM4900 via an LM1100 SNMP Enabler card allowing comprehensive management access including the full range of configuration changes, diagnostics and status analysis using either SNMP or Telnet, including SNMP traps. In this application a remote management data link has also been enabled to the remote FM4900 unit, allowing remote SNMP and Telnet access into this unit.
Line E3 Interface
|Port||G.703, 75 ohm unbalanced|
|Framing||G.751 or unframed|
|Interface||BNC (75 ohm)|
|Bit Rate||34.368 Mbps +/- 20 ppm|
|Cable Lengths||RG59 = 150m, UR202 = 180m|
|Port||HSSI per EIA612, EIA613|
|Interface||50-way AMP (SCSI II connector)|
|Bit Rate||34.099 Mbps (Line framed)|
|34.368 Mbps (Line unframed)|
Configuration & Management
|Access||System console, Telnet, SNMP|
|Interface||V.24, Ethernet 10 BaseT via RJ45|
|Security||Access by 2-level password|
|Clock Modes||Internal, Loop|
Status LED & Diagnostics
|Loop backs||NI Local loop, NI Remote loop, DTE loop, DTE External loop|
|Statistics||Per G.821, 15 min, 24 hour totals|
|Major Alarm LED||LOS, LOF, SQ (E3 port)|
|Minor Alarm LED||AIS, RAI (E3 port)|
|Data LEDs||DTE Tx Data, DTE Rx Data, DTE Fault (HSSI port)|
|Test LED||Test in progress LED, test configured via diagnostics menu|
|AC Mains||100 - 250VAC, 50 - 400Hz, 50mA IEC Connector|
|-48VDC||-36 to -72VDC, 200 - 100mA|
|Type||1U 19 inch Rack mount|
|Dimensions||435 x 213 x 44 mm (W x D x H)|
|Temp||0 - 50 deg C|
|Humidity||95% RH, non-condensing|
|Pressure||86 - 106 KPA|
Compliance & Approvals
|Performance||G703, G751, G823, CTR24, BABT#NS/4043/I/V/606274, NTR6|
|Statistics||G.821, AT&T54016:15min, 24hour totals|
|Management||RFC1213 (MIB2), RFC1495 (Telnet), RFC1157 (SNMP), RFC1407 (DS3/E3)|
|MetroDTE MIB (HSSI), RFC1215 (Traps)|
|Product||AC Mains||DC Power|
|FM4900 E3 - HSSI||80-05-015||80-21-015|
|LM1100 SNMP Enabler||14-02-139||14-02-139|
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