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FCD-NTU

Intelli

ent NTU

FEATURES

•

Intelligent Network

Termination Unit (NTU)

•

Interfaces supported:

V.35 at 56 kbps to

2.048 Mbps

X.21 at 56 kbps to

2.048 Mbps

G.703 unframed E1 at

2.048 Mbps

•

Automatic

activation/deactivation of

remote and local loopbacks

•

Supports clock loss

detection on the X.21 or

V.35 side and signal loss

detection on the G.703 side

•

Uses 32-bit error counters

for diagnostics

•

Alarm relay and alarm-in

connectors

•

Serial async RS-232 port for

out-of-band management

with DTE/DCE selectable

switch

•

Full SNMP management

through RADview-HPOV

•

Simple management

through ASCII terminal

•

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 T1/E1 inband

loop

DESCRIPTION

•

FCD-NTU is an intelligent

Network Termination Unit (NTU)

that includes two interfaces:

network link and user link.

•

FCD-NTU is available with either

V.35, X.21 or G.703 interfaces for

both DTE (network link) and DCE

(user link).

•

FCD-NTU supports dial-in and

dial-out modem connections.

These connections can be used

for remote out-of-band

configuration, monitoring and

sending callout alarm messages

using ASCII (terminal) or SLIP

protocols.

•

Setup, control and monitoring of

status and diagnostics information

can be activated via:

ASCII terminal connected to the

async control port

SNMP management connected

to the async control port.

•

FCD-NTU has an internal SNMP

agent and can be controlled by

any generic SNMP station or by

the RADview SNMP network

management application.

•

Maintenance capabilities include

user-activated local and remote

loopbacks at the network link and

user link. The user can also

activate a BER test for the network

link. The network link responds to

an ANSI FT1 RDL

(T1E1.2/93-003) inband loop

code, generated from the remote

network in a specific bundle of

timeslots allocated only to that

port.

•

When operating with CRC-4, E1

network statistics are stored in

memory according to RFC-1406.

The statistic information may be

retrieved locally through the

control port.

•

Record of last 100 alarms is stored

and available for retrieval. Each

alarm is time stamped. Certain

alarms in the alarm buffer activate

the alarm relay. Alarm-in function

enables FCD-NTU to receive

alarms from external equipment.

1 2

Inhaltsverzeichnis

Seite 1 - DESCRIPTION

FCD-NTUIntelligent NTUFEATURES • Intelligent NetworkTermination Unit (NTU)• Interfaces supported:! V.35 at 56 kbps to2.048 Mbps! X

Seite 2 - Intelligent NTU

 2001 RAD Data Communications Ltd. Specifications are subject to change without prior notice.FCD-NTUIntelligent NTU172-101-02/01SPECIFICATIONS

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