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The DC3000 provides a new level of price/ performance in connecting switches and routers to a structured E1 G.703/G.704 2.048Mbps leased line.
Front: DC3000 Fractional E1 (N*64k) G.703/G.704 to X.21
Rear: DC3000 Fractional E1 (N*64k) G.703/G.704 to X.21
Connecting a LAN bridge or router to a 2Mbit/s leased line requires a G.703 Interface. The DC3000 spans the gap between the synchronous interface of a bridge or router and the E1 leased line on a fractional E1 basis of 64Kbps per timeslot, up to a maximum of 31 timeslots for a single E1 line. If timeslot 16 is by-passed, then a maximum of 30 channels can be accommodated. The DC3000 offers an X.21 interface and BNC or RJ45 connectors for the E1 Line interface. The DC3000 is configured by setting bit-switches.
It is possible to connect the DC3000 to an EIA-530 via a converter cable.
The DC3000 range can easily be rackmounted in either a 1U two unit rackmount kit, 1U quad (4 x DC3000) box or in a 6U eighteen unit rackmount kit.
Also available in modular form for our 4U 12 slot managed centralised management option - MetroRack.
- Cost Effective E1 G.703/G.704 2.048Mbps Interface
- X.21 Port for Router connection
- Fractional n*64K support
- EIA530 connection via an external cable
- Easy to install & maintain
- External Alarm relay port
- Compact unit
- Built to European Standards
- Quad option available - 4 DC3000 in 1U box
DC3000: X.21 to Fractional E1
E1 Line Interface
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| Port |
G.703, 75 ohm unbalanced, 120 ohm balanced
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Interface
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BNC (75 ohm), RJ45 (120 ohm)
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Framing
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G.704 (with or without CRC4) or unframed
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Line Coding
|
HDB3
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| Bit Rate |
2.048Mbps +/- 50 ppm
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| Barrier |
Fully barriered per EN41003
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Cable Lengths
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RG59 = 600m
|
|
UR202 = 750m |
DTE Interface
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|
Port
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X.21
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Interface
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15 way female D type |
Bit Rate
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2.048 Mbps or N*64Kbps (n = 1 to 31)
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Configuration
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|
Clocks
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Internal, E1 Loop, Terminal, DTE Mode, set by dip switches
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Set Up
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Start Timeslot: 1 to 31
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Bandwidth: 1 to 31
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|
CRC4: Enable / Disable
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|
Timeslot 16 bypass: Enable / Disable
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| Status Display |
|
Type
|
Status LED on rear panel
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Off
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Mains power off
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Red
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Loss of Signal (LOS)
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Green
|
Unit OK
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Compliance & Approvals
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|
| Performance |
PD7024 (NTR4)
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Safety
|
EN41003, EN60950
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EMC
|
EN55022, EN50082
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Environment
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Temp
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0 - 50 deg C
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Humidity
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95% RH, non-condensing |
Pressure
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86 - 106KPA
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Power Supply
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AC Mains
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100 - 250VAC, 50 - 60Hzm 35 - 15mA, IEC Connector |
-48VDC Supply
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-40 to -7VDC, 100 - 50mA
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Power Consumption
|
3.5 watts approx when operating |
Packaging
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|
Type
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Modem, 1U high without feet |
Dimensions ( W x D x H mm )
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|
Rackmount
|
202 x 132 x 44 (without feet)
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Desktop
|
202 x 132 x 48 (with feet)
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Part Number
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|
Product
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AC Mains: 100 - 250VAC
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DC Power: -4VDC |
DC3000
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80-05-230
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80-21-230
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2 Unit Rackmount Kit
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80-05-256 |
80-05-256 |
18 Unit Rackmount Kit
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80-05-250 |
80-05-255
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DC3000: Fractional E1 G.703/G.704 - X.21
