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FCD-E1LC, FCD-T1LC

ana

ed E1/T1 or Fractional E1/T1 Access Unit

FEATURES

• Managed access units for

E1/T1 or Fractional E1/T1

• E1/T1 main link and sublink

support both framed and

unframed signals

• One or two data ports with

selectable sync data rates of

n × 56 kbps or n × 64 kbps

with serial data port

interfaces: V.35, RS-530,

V.36/RS-449, or X.21

• Optional sub-E1/T1

drop-and-insert port for

PBX connectivity

• Optional Ethernet

10/100BaseT bridge (with or

without VLAN support)

• SNMP agent

• Management:



Out-of-band via RS-232

supervisory port



Inband via TS0 over E1,

F Bit over T1, or

dedicated timeslot using

Frame Relay Protocol

(RFC 1490)

• Dial-in option for remote

out-of-band management

• Dial-out for alarm report

• Enhanced diagnostics

include:



User activated local and

remote loopbacks



Integrated BER tester



Fractional E1/T1 inband

loop

• Monitors and stores 24

hours of E1 or T1 network

performance and last

100 alarms

• Alarm mask configurable for

any alarm

DESCRIPTION

• FCD-E1LC and FCD-T1LC are

managed access units that can

convert rates and interfaces for

E1/T1 and Fractional E1/T1

services.

• FCD-E1LC and FCD-T1LC support

a single or dual serial n × 56 kbps

or n × 64 kbps data user

interface. An Ethernet LAN

interface can substitute the serial

data interface port to allow

LAN-to-LAN connectivity over

TDM media.

• FCD-E1LC and FCD-T1LC

interconnect with RAD modular

DXC (DACS) products and E1/T1

equipment from other vendors, to

support multilink star applications

such as access to SDH networks.

DXC, FCD, and Megaplex units

operate together under

centralized SNMP network

management.

• The E1 interface is compatible with

virtually all carrier-provided E1

services and meets ITU

recommendations G.703, G.704,

G.706, G.732, G.823, and G.826.

It supports both 2 and 16 frames

per multiframe, with or without

CRC-4. The E1 interface also

accepts a 2048 kbps data stream

and converts it to an ITU-T Rec.

G.703 unframed signal for transport

over the E1 main link and sublink.

Line code is HDB3. The integral

LTU ensures a range of up to 2 km

(1.2 miles) and is software

selectable.

• The T1 interface is compatible with

virtually all carrier-provided T1

services, including ASDS from AT&T

and complies with TR-62411 and

TR-62421. The T1 interface supports

D4 and ESF framing formats. Zero

suppression over the line is

software-selectable for either

transparent, B7ZS or B8ZS. The

software-selectable integral CSU

ensures a range of up to 2.1 km

(1.3 miles).

1 2 3 4

Indice de contenidos

Pagina 1 - FCD-E1LC, FCD-T1LC

FCD-E1LC, FCD-T1LC Managed E1/T1 or Fractional E1/T1 Access Unit FEATURES • Managed access units for E1/T1 or Fractional E1/T1 • E1/T1 main li

Pagina 2

Managed E1/T1 or Fractional E1/T1 Access Unit FCD-E1LC, FCD-T1LC • The optional sub-E1 port can be configured to work without CRC-4, while the E1 ma

Pagina 3 - FCD-E1LC, FCD-T1L

FCD-E1LC, FCD-T1LCManaged E1/T1 or Fractional E1/T1 Access Unit • Inband management can be performed either via a dedicated timeslot with the stand

Pagina 4

 1988–2005 RAD Data Communications Ltd. Specifications are subject to change without prior notice. All other trademarks are the property of their res

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