CTC Union ETU01C Bedienungsanleitung PDF herunterladen (Seite 24)

G.703 E1

Specifications

Indications

Standards

Power Input

Power Consumption

Dimensions

Weight

Temperature

Humidity

Certification

MTBF

Framing

Line Code

Data rate

Relative receive level

Transmit level

Pulse Nominal 2.37V ±10% for 75 ohm

Amplitude Nominal 3.00V ±10% for 120 ohm

Zero amplitude ±0.1V

Jitter performance

Connectors

Clock modes :

Clock mode 0 Receive & transmit clock

(DCE1) (recovered) to the sync DTE

Clock mode 1 Receive & transmit clock

(DCE2) (internal oscillator) to the sync DTE

Clock mode 2

Receive clock to the sync. and transmit

(DTE1) clock from the sync device

Clock mode 3 Receive and transmit clock from the

(DTE2) sync DCE (from ETC and ERC pin)

Clock mode 4 Receive and transmit clock from the

(DTE3) sync DCE (all from ETC pin)

LEDs (Power, TD, RD, RTS, DCD, Singal loss,

Sync loss, Alarm)

ITU-T G.703/G.704/G.706 & G.732

AC: 90-250VAC , DC: -18 ~ -75 VCD

10W

195 x 160 x 45mm (D x W x H)

510g

0~50°C (Operating) ,-10~70°C (Storage)

10~90% non-condensing

CE, FCC, RoHS

55,000 hrs (25°C)

Framed CCS (PCM31) CAS (PCM30)

/ Unframed CRC4 on/off

AMI/ HDB3

N*56K or N*64Kbps, where N=1~31

in CCS or N equal 1~30 in CAS

-43dB

According to ITU-T G.823

BNC(unbalanced), RJ-48(balanced)

The ETU01-Plus stand-alone DSU/CSU is a digital access unit

for Unframed E1 or Fractional E1 service. The ETU01-Plus data

channel supports user-selectable transmission rates via randomly

selected E1 timeslots, which provides integral multiples of

64kbps, up to a maximum 2.048Mbps (unframed), for a line

attenuation of up to 43 dB on twisted pair or coax cable. This

provides an approximate operating range up to 2km (using

22AWG). The ETU01-PLUS packs the data channels into the E1

link in user-selected time slots. The ETU01-Plus front panel sports

status LEDs for monitoring the CSU and DSU conditions and

pushbutton switches for initiating local and remote loopback with

integral BERT. The ETU01-Plus features a fixed on-board V.35

interface.

ETU01-Plus

Single V35 Port E1 CSU/DSU

Supports Fractional E1 and Unframed E1 service with EOC control

Model with fixed V.35 interface for price critical applications

I/O connectors all located on rear panel

Multiple clock source selection

( Internal or External: E1 recovery, DTE or DCE )

Built-in BERT with V.54 diagnostic capabilities for performing local

and remote loopback

Fixed V.35 port with MB34F connector

Features

E1 Network

E R M01

E TU01-Plus

V.35/X.21/R S

530/449

(2.048 Mbps)

V.35/X.21/RS

530/449

(2.048 Mbps)

V.35/X.21/RS

530/449

(2.048 Mbps)

V.35/X.21/RS

530/449

(2.048 Mbps)

Ordering Information

ETU01-Plus-AC : V35 port to E1 with AC power

ETU01-Plus-DC : V35 port to E1 with DC power

ETU01-Plus-ADT-AC-C5/C4 : Power plug adapter

●

E1 Access Unit

5-14

ETU01-Plus

www.ctcu.com

PDH Series

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