RAD Data comm FCD-G703 Manual do Utilizador descarregar pdf (Página 5)

FCD-E1A

E1 or Fractional E1 Access Uni

t

Table 1. Fiber Optic Interface Characteristics

Operating

Wavelength

[nm]

Fiber Type

[µm]

Typical

Output Power

[dBm]

Receiver

Sensitivity

[dBm]

Typical Optical

Budget

[dB]

Typical Maximum

Range

[km] [mi]

850 62.5/125 multimode -16 -38 20 5 3

1310 9/125 single mode -12 -40 28 62 38

1550 9/125 single mode -12 -40 28 100 60

• Interface

4-wire, full-duplex

• Bit Rate

192 kbps ±100 ppm

• Line Code

Pseudoternary

• Line Termination

100Ω ±5%

• Range

1000m (3300 ft)

• Signal Levels

Receive:

+1.5 to -7.5 dB relative to the

nominal amplitude

Transmit:

±750 mV

• Timing Modes

NT: Transmit timing is locked to

system timing clock

TE: Looped back towards the "S"

interface (timing is derived

from Rx signal from the ISDN

switch NT)

• Connector

RJ-45 (8-pin) per channel

• Power Feeding Voltage

38V (±4V), as per TR5805-3074

1W per channel

IBE BACKUP INTERFACE

• Number of Channels

One BRI “S” channel

• Standards

ITU I.430, Q.921, Q.931,

ETSI NET 3, i-CTR3

• Signal Format

Pseudoternary line coding

• Line Type

2 unloaded twisted-pair cables

• Impedance

100Ω, balanced

• Range

Up to 1000m (3300 ft)

• Connector

RJ-45 (8-pin)

MANAGEMENT PORTS

• CONTROL DCE Port



Interface and connector:

V.24/RS-232, 9-pin D-type,

female



Format: Asynchronous



Baud rate: 1.2–19.2 kbps,

autobaud



Character: 8 bit no parity, 7 bit

odd, or even parity

• CONTROL Port (Serial)



Connector: V.24/RS-232, 9-pin

D-type, female



Format: Asynchronous



Baud rate: 0.3–57.6 kbps,

autobaud



Character: 8 bit no parity, 7 bit

odd or even parity

• CONTROL Port (Ethernet)

Ethernet 10BaseT, RJ-45

GENERAL

• System Clock



Internal clock: ±30 ppm



Loopback timing (sub, main E1):

±130 ppm



External timing from data port:

n × 56, n × 64 kbps ±130 ppm

• Diagnostics

Main E1 link:

Local and remote loopback

Sub-E1 port:



Local and remote loopback



BER test

Data port:



Local and remote loopback



BER test



Inband code activated loopback

per data port

• Timeslot Allocation



Consecutive (bundled)



User-defined

• Front Panel Control

LCD: 2 rows of 16 characters

Push buttons: Cursor, Scroll, Enter

• Indicators

General: TST, ALM

Main E1: LOC SYNC LOSS, REM

SYNC LOSS

Sub-E1: LOC SYNC LOSS, REM

SYNC LOSS

All indicators are red except TST

(yellow).

• Alarms

Last 100 alarms are stored and

available for retrieval. Each alarm

is time-stamped.

• Alarm Relay

3 relay contacts are available on

the alarm relay port.

Activated by alarms in the

user-defined alarm buffer.

1 2 3 4 5 6

FCD-E1A 1
SPECIFICATIONS 4

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