FCD-E1L, FCD-T1L

E1/T1 or Fractional E1/T1 Mana

ed Access

Units

FEATURES

• Managed access units for

E1/T1 or Fractional E1/T1

• E1/T1 main link interfaces

support both framed and

unframed signals

• Provide one or two data

ports with selectable sync

data rates of n x 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

include:



User activated local and

remote loopbacks



Integrated BER tester



Fractional E1/T1 inband

loop

• Stores 24 hours of E1

network performance

monitoring and last

100 alarms

• Alarm mask configurable for

any alarm

DESCRIPTION

• FCD-E1L and FCD-T1L are

managed access units, which 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 x 64 kbps data

user interface. Instead of serial data

interface port, an Ethernet LAN

interface can be ordered, allowing

LAN-to-LAN connectivity over TDM

media.

• FCD-E1L and FCD-T1L also operate

opposite RAD's modular DXC

(DACS) products, as well as other

vendors' E1/T1 equipment, to

support multilink star applications,

such as access to SDH networks.

The DXC and the FCD units

operate together with a 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 integral LTU

ensures a range of up to

2 km/1.2 miles and is soft-selectable.

• 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.

The user-selectable integral CSU

ensures a range of up to 1.3 mile.

• Timeslot assignment is

programmable, allowing 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

1 2 3 4

FCD-E1L, FCD-T1L 1

Sommario

Pagina 1 - FCD-E1L, FCD-T1L

FCD-E1L, FCD-T1L E1/T1 or Fractional E1/T1 Managed Access Units FEATURES • Managed access units for E1/T1 or Fractional E1/T1 • E1/T1 main lin

Pagina 2

E1/T1 or Fractional E1/T1 Managed Access Units FCD-E1L, FCD-T1L monitored by a dedicated LED indicator and/or supervision terminal messages. • Multi

Pagina 3

FCD-E1L, FCD-T1LE1/T1 or Fractional E1/T1 Managed Access Units• Maintenance capabilities include user activated local and remote loopbacks at the E

Pagina 4

 1991–2003 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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