RAD Data comm FCD-V35 Manual do Utilizador descarregar pdf (Página 3)

FCD-E1L, FCD-T1L

E1/T1 or Fractional E1/T1 Managed Access Units

• E1 network statistics are stored in

memory, according to RFC 1406.

Statistical information can be

retrieved locally through the

control port.

• T1 network statistics are stored in

memory, according to ANSI and

AT&T standards. The statistical

information may be retrieved by

the service provider (ANSI only)

or locally through the control port.

SPECIFICATIONS

E1 MAIN LINK

• Framing



256N (no MF, CCS)



256N (no MF, CCS) with CRC-4



256S (TS16 MF, CAS)



256S (TS16 MF CAS) with CRC-4



Unframed

• Bit Rate

2.048 Mbps

• Line Code

AMI

• Zero Suppression

HDB3

• Line Impedance



120Ω, balanced



75Ω, unbalanced

• Transmit Timing

Locked to the system clock

• Signal Level



Receive:

0 to -10 dB without LTU

0 to -36 dB with LTU (main

link only)



Transmit:

±3V (±10%), balanced

±2.37V (±10%), unbalanced

• Jitter Performance

As per ITU G.823, ETSI TBR-12

and TBR-13

• Connectors



RJ-45, 8-pin, balanced



Two BNC coaxial, unbalanced

• Compliance

ITU G.703, G.704, G.706, G.732,

G.823, G.826

• Performance Monitoring



Local support of CRC-4



Full statistical diagnostics

according to RFC-1406

T1 MAIN LINK

• Framing



D4



ESF



Unframed

• Bit Rate

1.544 Mbps

• Line Code

AMI

• Zero Suppression

Transparent, B7ZS, B8ZS

• Line Impedance

100Ω, balanced

• Transmit Timing

Locked to the system clock

• Signal Level



Receive:

0 to -10 dB without CSU

0 to -36 dB with CSU (main link

only)



Transmit:

0, -7.5, -15, -22.5 dB with CSU

±3V,±10% soft-adjustable at

0 to 655 ft without CSU

• T1 Jitter Performance

As per AT&T TR-62411

• Connector

RJ-45, 8-pin, balanced

• Compliance

AT&T TR-62411, AT&T 54016,

AT&T TR-62421, ANSI T1.403

• Performance Monitoring



Local support of ESF diagnostics

according to AT&T PUB 54016



Full statistical diagnostics

according to ANSI T1.403-198

DATA PORTS

• Connectors



D-type 25-pin RS-530, female,

converted to V.35, X.21, or

V.36/RS-449 via adapter cables



D-type 25-pin V.24, female

• Data Rate

n × 64 kbps (n=1,2,...,31)

• Clock Modes

DCE: RX and TX clock to user

device

DTE1: RX clock to user device;

TX clock from user device

(not for X.21, V.24)

DTE2: RX and TX clock from user

device (not for X.21, V.24)

• Control Signals



CTS follows RTS or constantly

On, software selectable



DSR constantly On, unless in test

mode



DCD constantly On, unless in

sync loss

ETHERNET BRIDGE/ROUTER PORT

See Table 1

• Interface and Connectors



IR-ETH, IR-ETH/Q, IR-IP:

10BaseT (UTP) with shielded

RJ-45



IR-ETH/QN: 10/100BaseT (UTP)

with shielded RJ-45

DIAGNOSTICS

• Main E1/T1 link

Local and remote loopback

• Data Port



Local loopback



Remote loopback



Data port BER test



Inband code activated loopback

per data port



T1 network loopback,

code-activated (FCD-T1L only)

GENERAL

• System Clock

Internal clock: ±50 ppm

Loopback timing: ±130 ppm

External timing from data port:

±130 ppm

• Management 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

• Timeslot Allocation



Consecutive (bundled)



User-defined

1 2 3 4

FCD-E1L, FCD-T1L 1

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