Cronyx Qlink-3000/2E1 Betriebsanleitung

CCC

Ministry of

Communications

of Russia

Multiplexing Modem

Qlink-3000

Models /2E1 and /E1-ETV

Installation and Operations Guide

Qlink-3000 Multiplexing modem

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Contents

Section 1. Introduction .......................................................5

1.1. Application .................................................................................................. 5

1.2. Model series ................................................................................................ 7

1.3. Order code ................................................................................................... 7

1.4. Technical specifications .............................................................................. 8

Link interface..................................................................................... 8

E1 interface (2048 kbit/s) .................................................................. 8

Ethernet interface............................................................................... 9

Emergency alarm interface................................................................ 9

Console port....................................................................................... 9

Control port SNMP ........................................................................... 9

Diagnostic modes ............................................................................ 10

Dimensions and weight ................................................................... 10

Electric power supply ...................................................................... 10

Operating conditions ....................................................................... 10

Section 2. Installation ....................................................... 11

2.1. Installation place requirements ................................................................. 11

2.2. Delivered items ......................................................................................... 11

2.4. Cable connections ..................................................................................... 11

Power supply connector .................................................................. 12

Ground terminal............................................................................... 13

Link connector ................................................................................. 13

E1 port connectors ........................................................................... 13

Ethernet port connector ................................................................... 14

SNMP port connector ...................................................................... 14

Console port connector.................................................................... 14

Emergency alarm connector ............................................................ 15

Section 3. Operations .......................................................16

3.1. Indicators................................................................................................... 16

Qlink-3000 Multiplexing modem

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3.2. Emergency alarms..................................................................................... 21

3.3. Device responses to emergencies ............................................................. 22

3.4. Loops......................................................................................................... 23

Normal mode ................................................................................... 23

E1 port loop (Port 0 loop) ............................................................... 24

E1 port tributary loop (Port 0 tributary loop) ................................. 24

Local loop on the link...................................................................... 25

Link remote loop ............................................................................. 25

3.5. Built-in BER tester ................................................................................... 26

Section 4. Control via the console port ..........................28

4.1. Upper level menu ...................................................................................... 28

4.2. Menu structure .......................................................................................... 30

Menu structure for models: ............................................................. 30

Qlink-3000/S-E1/ETV-SNMP-AC ................................................. 30

Qlink-3000/S-E1/ETV-SNMP-DC ................................................. 30

Menu structure for models: ............................................................. 30

Qlink-3000/S-2E1-SNMP-AC ........................................................ 30

Qlink-3000/S-2E1-SNMP-DC ........................................................ 30

4.3. “Statistics” menu ...................................................................................... 32

4.5. “Event counters” command ...................................................................... 34

4.6. “Loopback” menu ..................................................................................... 36

4.7. “Test” menu .............................................................................................. 36

4.8. “Configure” menu ..................................................................................... 38

“PCLK source” parameter............................................................... 39

“Mode” item .................................................................................... 39

“Port 0...” and “Port 1...” menus ..................................................... 39

“Alarm input” command ................................................................. 41

“SNMP” menu ................................................................................. 41

“Remote control” parameter............................................................ 42

“Factory settings” menu .................................................................. 43

4.9. “Link remote login” command ................................................................. 43

4.10. “Reset” command ................................................................................... 44

Section 5. Management via SNMP ..................................45

5.1. SNMP parameter settings ......................................................................... 46

5.2. Management information blocks (MIBs) ................................................. 47

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Safety precautions

!An exclamation point enclosed in a triangle warns the user about important

operations and maintenance instructions for the device.

It is mandatory to observe the existing safety rules during installation, operations, and

technical maintenance of the device. Installation, technical maintenance, and repair

operations must be performed only by qualified and certified personnel. Installation,

technical maintenance, and repair operations must not be performed by the operator or

the user.

Certificate of Conformance

No. OS / 1-TM-317

The Qlink-3000 multiplexing modem equipment has been tested in the

Telecommunications Technical Device and System Testing Center of the “TsNIIS”

(Central Research and Development Institute of Telecommunications) of the Ministry

of Communications of the Russian Federation and is certified to comply with the

following technical requirements:

• RD 45.122-99 “Data transmission equipment designed for use as subscriber sets on

public physical communication links. Technical requirements”;

• RD 45.176-2001 “Communication equipment implementing frame switching in the

local network at the data link layer. Technical requirements”

• GOST R ISO 9001-96.

The Qlink-3000 multiplexing modem equipment is approved for use in the interlinked

communication network in Russia as subscriber sets for data transmission over non-

superimposed physical communication links.

CCC

Ministry of

Communications

of Russia

Qlink-3000 Multiplexing modem

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Section 1. Introduction

1.1. Application

Qlink-3000 – is a modem family for physical links, designed to operate over a single twisted

pair. Models equipped with two data ports (/2E1 and /E1-ETV) include the multiplexing

device and allow transmission of two independent data streams over a single twisted pair.

Device structural diagram is presented on the figure:

Port 0

E1 (G.703, G.704)

Port 1

E1 (G.703, G.704) or

Ethernet 10/100BaseT

(Ethernet 10BaseT)

Multi-

plexer

SHDSL

transceiver

SNMP port

Console port Processor

Maximum data transmission rate is 2304 kbit/s (36 x 64 kbit/s). Maximum transmission

distance depends on the data transmission rate in the link. The maximum link length for

the 26 AWG (0.4 mm) cable is given in the following table:

knilehtnietaratadlacisyhP etarnoissimsnartataD htgnelelbacmumixaM

s/tibk0232 s/tibk4032 mk0.4

s/tibk487 s/tibk867 mk4.5

s/tibk272 s/tibk652 mk6.7

The picture shows the diagrams of the item's use:

Port 1 (Ethernet)

Port 0 (E1)

Ethernet (SNMP)

Port 1 (Ethernet)

Port 0 (E1)

Qlink-3000

Ethernet Hub

Switch

Qlink-3000

Telephone

exchange

Router

Physical line

("copper pair")

Telephone

exchange

Ethernet

network

Qlink-3000 Multiplexing modem

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Main Qlink-3000 multiplexing modem characteristics:

• transmission of two data streams over a two-wire physical link for up to 10 km

distance;

• compliance with ITU-T standards G.703, G.704, G.706, G.991.2, and IEEE 802.3;

• local and remote loops;

• Built-in Bit Error Rate Tester (BER tester);

• RS-232 console port;

• remote control and monitoring over the SNMP protocol via a separate Ethernet port;

• emergency alarms (“dry” contacts of relay);

• design for mounting in a 19” rack (1U);

• built-in power supply unit for AC (176-264 V, 50 Hz) or DC (36-72 V) power

source.

The device may be controlled via the RS-232 interface using an ASCII terminal, or via

Ethernet using the SNMP protocol.

Indicators on the device's front panel show link status, enabled loops and enabled testing

mode. The built-in BER-tester allows measuring error rate in the link path. The

measurements are performed using fixed or pseudo-random code according to the O.151

recommendation (the pattern length is 215-1=32767 bits).

In order to test links in case when there are no personnel at the remote end of the link,

there is a remote login capability (to control the remote device from the console port of

the local device). Commands are transmitted to the remote device via an additional

service channel. At user's request remote configuration parameter changes may be

prohibited.

The device is equipped with an emergency alarm relay, the “dry” contacts of which may

switch on an external device to call the operations personnel.

The multiplexing modem has the capability of firmware upgrades. The instructions for

upgrading the firmware may be found at the www.cronyx.ru website.

Qlink-3000 Multiplexing modem

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1.2. Model series

The Qlink-3000 multiplexing modem has two data ports, one of which (Port 0) has an

E1 interface (G.703, G.704), and the other may be E1, Ethernet 10/100Base-T, digital

V.35 port, or a universal port (V.35, RS-530, RS-232 or X.21).

The multiplexing modem may also be equipped with an additional Ethernet 10Base-T

port for control over the SNMP protocol.

Additionally, the Qlink-3000 family includes modems with a single data port with a E1,

Ethernet 10/100Base-T, V.35 interface or a universal interface (V.35, RS-530, RS-

232, X.21).

All Qlink-3000 family modems are compatible with each other, i.e. there may be a

single model on one end of the link, and another model on the other.

1.3. Order code

Qlink-3000

Qlink-3000 / S - E1/ETV-SNMP-AC

Model:

Design:

S - 1U for a 19" rack

B - desktop

Data port(s):

2E1 - two E1 ports

E1-ETV - E1 and Ethernet (10/100Base-T)

E1-V - E1 and V.35

E1-M - E1 and V.35/RS-530/RS-232/X.21

E1 - single E1 port

ETV - single Ethernet port (10/100Base-T)

V - single V.35 port

M - single V.35/RS-530/RS-232/X.21 port

Power supply

220VAC

36...72VDC

or 40...60VDC

Control over SNMP

Qlink-3000 Multiplexing modem

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1.4. Technical specifications

Link interface

Link requirements .......................................... Unloaded twisted pair

Link data rate.................................................. 208 kbit/s to 2320 kbit/s

Link length ..................................................... Up to 10 km with a 0.6 mm wire strand

diameter,

up to 7.6 km with a 0.4 mm wire strand

diameter

Connector ....................................................... RJ type (female, 8 pins)

Encoding......................................................... TC-PAM

Transmission path synchronization................ Internal (from an internal clock-pulse

oscillator)

From Port (from the receiving path of

the E1 port)

Overvoltage protection ................................... SIDACtor

Overcurrent protection ................................... Fuse

E1 interface (2048 kbit/s)

Connector ....................................................... RJ-48 (female)

Link impedance .............................................. 120 Ohms, balanced (twisted pair)

Cycle structure................................................ according to G.704, or transparent stream

transmission (Unframed G.703)

Signal level at the receiver input.................... 0 to -43dB, up to 2 km over 22AWG

(0.6 mm) twisted pairs

Jitter attenuator ................................................ in the receiver path

Data encoding................................................. HDB3

Error detection ................................................ Bipolar violation

Overvoltage protection ................................... TVS

Overcurrent protection ................................... Fuse

Qlink-3000 Multiplexing modem

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Ethernet interface

Interface type .................................................. Ethernet 100Base-T

Connector type ............................................... RJ-45 (female)

Bandwidth ...................................................... 64 to 2304 kbit/s

Operating mode .............................................. 100 Mbps Full-duplex,

100 Mbps Half-duplex,

10 Mbps Full-duplex,

10 Mbps Half-duplex,

or Autonegotiation

(automatic selection)

LAN table size................................................ 15000 MAC-addresses

Maximum frame size...................................... 4224 bytes, including

MAC-layer header

Protocols ......................................................... Transparent or

Cisco-HDLC bridging IEEE protocol,

set automatically

Emergency alarm interface

Connector type ............................................... DB-9 (female)

Relay contact current...................................... Up to 600 mA

Relay contact voltage ..................................... Up to 110 VDC or 125 VAC

Console port

Interface type, ................................................. RS-232 DCE connector, DB-9 (female)

Data transfer protocol..................................... Asynchronous, 9600 bit/s,

8 bits/character, 1 stop bit, no parity

Modem signals ............................................... DTR, DSR, CTS, RTS, CD

Control port SNMP

Interface type .................................................. Ethernet 10Base-T

Connector ....................................................... RJ-45

Qlink-3000 Multiplexing modem

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Diagnostic modes

Loops .............................................................. Local, remote

Error rate control ............................................ Built-in

Control ............................................................ Via the RS-232 control port,

via the SNMP interface, or from a

remote device

Dimensions and weight

Design............................................................. For mounting in a 19”rack, height 1U

Size ................................................................. 444 mm x 262 mm x 44 mm

Weight............................................................. 3.4 kg

Electric power supply

176–264 VAC, 50 Hz

36–72 VDC

Power consumption ........................................ Not more than 12.5 W

Operating conditions

Temperature .................................................... 0 to 50 °C

Relative humidity ........................................... Up to 80%, no condensation

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