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The DC3445 provides a new level of price/performance in connecting bridges and routers to E3 34.368Mbps or DS3 44.736Mbps leased lines. Connecting a LAN bridge or router to a leased line can require a G.703 Interface.

DC3445: E3/DS3 to HSSI
DC3445: E3/DS3 to HSSI

The DC3445 spans the gap between the synchronous interface of a bridge or router and an E3 or DS3 leased line.

The DC3445 offers a HSSI Interface and BNC connectors for the E3 or DS3 line interface.

The DC3445 interface speeds and clocking modes are configured simply by setting the dip switches.

The DC3445 can easily be rackmounted in either a 1U two unit rackmount kit, 1U quad (4 x DC3445) box or in a 6U eighteen unit rackmount kit.

Also available in modular form for our 4U 12 slot managed centralised management option - MetroRack.

Product Features

  • Cost-effective E3/DS3 leased line interface
  • HSSI port for router connection
  • External Alarm relay port
  • Easy to install & maintain
  • Built to European Standards
  • Rack nest for 2 or 18 units
  • Quad option available - contains 4 DC3445 in 1U box

Application Diagram

DC3445: HSSI Router Interface to E3/DS-3 Link

DC3445: HSSI Router Interface to E3/DS-3 Link

Higher speed router connectivity to the WAN becoming more common-something to do with the growth of the Internet. Higher speed routers are beginning to offer WAN interfaces at E3 and DS3.

The DC3445 HSSI to E3 / DS3 converter was developed to offer a simple solution for Routers with a standard HSSI interface, use a DC3445 to convert to (non-ATM) 34 or 45 Mbit/s, be able to use the full bandwidth of the link (rather than using ATM conversion) and save money, compared to the cost of the E3 ATM Cisco WAN Interfaces.

The DC3445 can easily be rackmounted in either a 1U two unit rackmount kit, 1U quad (4 x DC3445) box or in a 6U eighteen unit rackmount kit.

Specifications

E3 Line Interface
Port
G.703, 75 ohm unbalanced
Interface
BNC (75 ohm)
Line Coding
HDB3
Bit Rate
34.368 Mbps +/- 20 ppm
Barrier Fully barriered per EN41003
Cable Lengths
RG59 = 150m
UR202 = 180m

DS3 Line Interface
Port
G.703, 75 ohm unbalanced
Interface
BNC (75 ohm)
Line Coding
B3ZS
Bit Rate
44.736 Mbps +/- 20 ppm
Barrier Fully barriered per EN41003
Cable Lengths
RG59 = 120m
UR202 = 150m

DTE Interface
Port
HSSI
Interface
50 way SCSI2 connector
Bit Rate
Same as Line Rate

Status Display
Type
Status LED
Off
Mains power off
Flashing Green/ Off
DTE Alarm
Flashing Red/ Off LOS and DTE Alarm
Steady Green
Unit Ok
Steady Red
E3/DS3 WAN Port LOS Alarm

Configuration
Clocks
E3/DS3 Line Port: Circuit 113 (normally slaved to Circuit 114)
DTE Port (Circuit 114): Internal, Loop
DTE Receive timing RT: Circuit 115 is always sources from the E3/DS3 Receive clock
(Set by DIP switches)

Compliance & Approvals
Performance PD7024 (NTR4)
Safety
EN41003, EN60950
EMC
EN55022, EN50082

Environment
Temp 0 - 50 deg C
Humidity 95% RH, non-condensing
Pressure
86 - 106 KPA

Power Supply
AC Mains
100 - 250VAC, 50 - 60Hz, 115 - 45mA, IEC Connector
-48VDC
-36 to -7VDC, 150 - 70mA

Packaging
Type
Modem, 1U high without feet

Dimensions (W x D x H mm )
Rackmount
202 x 132 x 44 (without feet)
Desktop
202 x 132 x 47 (with feet)

Ordering Information


Part Number

Product AC Mains: 100 - 250 VAC
DC Power: -48VDC
HE1000
80-05-500
80-21-500
1U 2 Unit Rackmount Kit
80-05-256
80-05-256
6U 18 Unit Rackmount Kit
80-05-250
80-05-255