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FCD-E1L, FCD-T1L

E1/T1 or Fractional E1/T1 Mana

ed Access

Units

FEATURES

• Managed access device for

E1/T1 or Fractional E1/T1

services

• E1/T1 main link interfaces

support both framed and

unframed data

• One or two data ports with

selectable sync data rates of

n × 64 kbps

• Serial data port interfaces:

V.35, RS-530, V.36/RS-449,

V.24, or X.21

• Optional Ethernet or Fast

Ethernet bridge (with or

without VLAN support)

or IP router

• Autoconfiguration function

for plug-and-play operability

• SNMP agent

• Management:



Out-of-band via V.24

supervisory port



Inband via TS0 or

dedicated timeslot over

Frame Relay

• Dial-in option for remote

out-of-band management

• Dial-out for alarm report

• Enhanced diagnostics:



User-activated local and

remote loopbacks



Integrated BER tester



Fractional E1/T1 inband

loop

• Stores 24 hours of

monitored E1 network

performance and last

100 alarms

• Alarm mask configurable for

any alarm

DESCRIPTION

• FCD-E1L and FCD-T1L are

managed access units that can be

used as rate and interface

converters for E1/T1 and fractional

E1/T1 services.

• FCD-E1L and FCD-T1L support a

single- or dual-serial n × 64 kbps

data user interface. Instead of a

serial data interface port, an

Ethernet LAN interface can be

ordered, allowing LAN-to-LAN

connectivity over TDM media.

• FCD-E1L and FCD-T1L operates

with RAD's modular DXC (DACS)

products, as well as E1/T1

equipment of other vendors, to

support multilink star applications,

such as access to SDH networks.

The DXC and FCD units can be

managed with 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. It can also accept a

2048 kbps data stream and

convert it to an ITU-T Rec. G.703

unframed signal for transport over

the E1 main link. Line code is

HDB3. The software-selectable

integral LTU provides a range of

up to 2 km (1.2 miles).

• The T1 interface is compatible with

virtually all carrier provided T1

services, including ASDS from

AT&T and complies with TR-62421.

The T1 interface supports D4 and

ESF framing formats. Zero

suppression over the line is

selectable for either transparent,

B7ZS, or B8ZS coding. The

software-selectable integral CSU

ensures a range of up to 2.1 km

(1.3 miles).

• Programmable timeslot assignment

allows data from each data port to

be placed automatically into

consecutive timeslots. Alternatively,

timeslots can be assigned manually

at user discretion.

• FCD-E1L and FCD-T1L feature

autoconfiguration for

plug-and-play connectivity. Upon

connection to the E1/T1 link, the

units detect the E1/T1 parameters

and perform autoconfiguration

accordingly. This E1/T1 learning

process can be activated via either

a push-button on the

FCD-E1L/FCD-T1L front panel or

a terminal command. The state of

the learning process is monitored

by a dedicated LED indicator

and/or supervision terminal

messages.

1 2 3 4

FCD-E1L, FCD-T1L 1

Resumo do Conteúdo

Página 1 - FCD-E1L, FCD-T1L

FCD-E1L, FCD-T1L E1/T1 or Fractional E1/T1 Managed Access Units FEATURES • Managed access device for E1/T1 or Fractional E1/T1 services • E1/T1

Página 2

E1/T1 or Fractional E1/T1 Managed Access Units FCD-E1L, FCD-T1L • Multiple clock source selection ensures maximum flexibility to support different a

Página 3

FCD-E1L, FCD-T1LE1/T1 or Fractional E1/T1 Managed Access Units• E1 network statistics are stored in memory, according to RFC 1406. Statistical info

Página 4

 1991–2006 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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