Interface Converter: FM4000
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Fractional E1 (Nx64kbps) G.703/G.704 to X.21/V.35 Converter
The Metrodata FM4000 DSU is used to interface high performance DTE equipment such as bridges or routers with X.21 or V.35 interfaces to structured or unstructured E1 G.703/G.704 2.048Mbps leased line services.
E1 to X.21/V.35 Interface Converter
- High Spec E1 G.703/G.704 2.048Mbps interface conversion
- X.21 or V.35 port for router connection
- Fractional Nx64Kbps support
- 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 FM4000 offers conversion between an X.21 or V.35 serial interface and an E1 line interface with BNC or RJ45 connector options. The FM4000 supports both unframed and framed (or fractional) operation.
Fractional operation allows a number of 64kbps timeslots to be active, up to a maximum of 31 timeslots for a single E1 line. If timeslot 16 is bypassed, then a maximum of 30 timeslots (channels) can be accommodated.
The FM4000 has several LEDs for displaying current status, plus comprehensive configuration and diagnostics via a menu driven user interface.
It is possible to connect the FM4000 to EIA-530 or RS-449 equipment using conversion cables.
Using a dedicated management timeslot pairs of FM4000s 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.
Router Applications
- X.21 router to Fractional E1 Nx64kbps G.704 leased line conversion
- Connecting pairs of X.21 routers over an E1 2Mbps G.703/G.704 leased line
- V.35 router to Fractional E1 Nx64kbps G.704 leased line conversion
- Connecting pairs of V.35 routers over an E1 2Mbps G.703/G.704 leased line
- LM1100 SNMP Enabler used with Management Data link to manage a pair of FM4000 units
This application shows an FM4000 connecting an X.21 router card to an E1 G.703 2.048Mbps leased line, such as a BT Megastream-2 service. X.21 serial ports are often the most cost effective WAN port available on routers. Most Telecom carriers provision E1 2.048Mbps services with G.703 connectivity. Care must be taken to ensure that the remote equipment is configured in a compatible manner (i.e. both ends unframed or both ends framed). If the leased line is framed then the equipment at both ends of the leased line must also be framed.
This application shows a pair of FM4000 units connecting a pair of X.21 routers via an E1 G.703 2.048Mbps leased line, such as a BT Megastream-2 service. X.21 serial ports are often the most cost effective WAN port available on routers. Most Telecom carriers provision E1 2.048Mbps services with G.703 connectivity. Care must be taken to ensure that the remote equipment is configured in a compatible manner (i.e. both ends unframed or both ends framed). If the leased line is framed then the equipment at both ends of the leased line must also be framed.
This application shows an FM4000 connecting an V.35 router card to an E1 G.703 2.048Mbps leased line, such as a BT Megastream-2 service. X.21 serial ports are often the most cost effective WAN port available on routers. Most Telecom carriers provision E1 2.048Mbps services with G.703 connectivity. Care must be taken to ensure that the remote equipment is configured in a compatible manner (i.e. both ends unframed or both ends framed). If the leased line is framed then the equipment at both ends of the leased line must also be framed.
This application shows a pair of FM4000 units connecting a pair of V.35 routers via an E1 G.703 2.048Mbps leased line, such as a BT Megastream-2 service. V.35 serial ports are often the most cost effective WAN port available on routers. Most Telecom carriers provision E1 2.048Mbps services with G.703 connectivity. Care must be taken to ensure that the remote equipment is configured in a compatible manner (i.e. both ends unframed or both ends framed). If the leased line is framed then the equipment at both ends of the leased line must also be framed.
This application show a remote network management centre controlling the head office FM4000 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 FM4000 unit, allowing remote SNMP and Telnet access into this unit.
E1 Line Interface | |
| Port | G.703, 75 ohm unbalanced / 120 ohm balanced |
| Interface | BNC (75ohm) / RJ45 (120 ohm) |
| Framing | G.704 (with or without CRC4) or unframed |
| Line Coding | HDB3 |
| Bit Rate | 2.048Mbps +/- 50ppm |
| Barrier | Fully compliant as per EN41003 |
| Cable Lengths | BNC: RG59 = 600m, UR202 = 750m |
| RJ45: Belden 8132 = 175m, Belden 9841 = 300m | |
DTE Interface | |
| Port | X.21 or V.35 |
| Interface | X.21: ISO4903 15 way female D-type |
| V.35: ISO2593 34 way M rack | |
| Bit Rate | 2.048 Mbps or Nx64kbps (N = 1 to 31) |
Configuration & Management | |
| Type | Menu Driven |
| Access | System console, Telnet, SNMP |
| Interface | V.24, Ethernet 10 BaseT via RJ45 |
| Security | Access by 2-level password |
| System | Non volatile configuration |
| Clock Modes | Internal, Loop, Terminal Timing (CCITT cct113) |
Status LEDs & Diagnostic Functions | |
| Loop backs | Local loop, Remote loop |
| strong BERT | 2^15-1 PRBS |
| Statistics | Per G.821, 15 min, 24 hour totals |
| Major Alarm LED | LOS, LOF, SQ (E1 port) |
| Minor Alarm LED | AIS, RAI (E1 port) |
| Data LEDs | DTE Tx Data, DTE Rx Data, DTE Fault (X.21/V.35 port) |
| Test LED | Test in progress LED, test configured via diagnostics menu |
Power Supply | |
| AC Mains | 100 - 250VAC, 50 - 400Hz, 50mA IEC Connector |
| -48VDC | -36 to -72VDC, 200 - 100mA, Buccaneer connector |
Packaging | |
| Type | 1U 19 inch Rack mount |
| Dimensions | 435 x 213 x 43 mm (W x D x H) |
Environment | |
| Temp | 0 - 50 deg C |
| Humidity | 95% RH, non-condensing |
| Pressure | 86 - 106 KPA |
Compliance & Approvals | |
| Performance | G703, G.704, G.706, G.823 |
| BNC Version | OTR.001 2DS, BABT#NS/4043N/P/603813 |
| RJ45 Version | CTR12, CTR13, BABT#AA606631 |
| Safety | EN41003, EN60950 |
| EMC | EMC EN55032 |
| Statistics | G.821, AT&T54016: 15 min, 24 hour totals |
| Management | RFC1213 (MIB2), RFC1495 (Telnet), RFC1157 (SNMP), RFC1406 (DS1/E1) |
| MetroDTE MIB (X.21/V.35), RFC1215 (Traps) | |
| Part Number | ||
| Product | AC Mains | DC Power |
| E1 BNC to X.21 | 80-05-005 | 80-21-005 |
| E1 BNC to V.35 | 80-05-006 | 80-21-006 |
| E1 RJ45 to X.21 | 80-05-007 | 80-21-007 |
| E1 RJ45 to V.35 | 80-05-008 | 80-21-008 |
| LM1100 SNMP Enabler | 14-02-139 | |
Related Products
E1 Converters
- DC1000: E1 to X.21
- DC1200: E1 G703 to V.35
- DC3000: Fractional E1 G.704 to X.21
- DC3200: Fractional E1 G.704 to V.35
- WC1000: Fast Ethernet over E1 G.703
- FC1X00: E1 over Fibre (MM/SMSH/SMLH)
- FM4000: Fractional E1 G.704 to X.21/V.35 with SNMP Converter
- FM4200: Fractional E1 G.704 to E1 + X.21/V.35 with SNMP Multiplexer
- FM4500: Fractional E1 G.704 to E1 + 4xX.21/V.35 with SNMP Multiplexer
- Emux: Multiple E1 over Fibre Multiplexer
- MetroLAN1000: Multiple E1/T1/Ethernet Fibre Multiplexer
- MetroLAN2000: Multiple E1/T1/E3/DS3/Ethernet Fibre Multiplexer
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