Cronyx FMUX/SAT Manuel utilisateur

Multiplexer

FMUX/SAT

4 x E1 ports

V.35/RS-530/RS-449 link interface

in codirectional mode

Installation and Operations

Manual

Document version: 1.7E / 06.09.2006

2FMUX/SAT Multiplexer

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, operation,

and maintenance of the device. Installation, maintenance, and repair operations must

be performed only by qualied and certied personnel. Installation, maintenance,

and repair operations may not be performed by the operator or the user.

This is to certify that the multiplexer equipment «FMUX» manufactured by

«Cronyx» in compliance with Technical Specifications 150.RUS ТУ is compliant

with the following requirements:

• «Technical Requirements to secondary time trunking equipment for 2/8 Mbit/s

digital transmission systems» approved by the Ministry of Information Tech-

nologies and Communications of the Russian Federation, January 17, 1997;

• «Technical Requirements to tertiary time trunking equipment for 2/34 Mbit/s

digital transmission systems» approved by the Ministry of Information Tech-

nologies and Communications of the Russian Federation, January 17, 1997.

Multiplexer equipment «FMUX» has the following application conditions: in pub-

lic network as secondary and tertiary time trunking equipment of plesiochronous

digital hierarchy.

Firmware Version

This manual applies to the device with the following rmware version:

Order code prex Firmware version

FMUX/S - 4E1 - SAT Revision A, 28/04/2006

The unit is manufactured in the “/S” design, as a device in 1U high metal enclosure,

for mounting in a 19” rack.

Device specications and design may be changed without prior notice to consumers.

4FMUX/SAT Multiplexer

Contents

Section 1. Introduction....................................................6

1.1. Purpose ..................................................................................................... 6

1.2. Features .................................................................................................... 6

1.3. Order Code ............................................................................................... 7

1.4. Connection Diagram ................................................................................ 8

1.5. Specications ........................................................................................... 9

E1 Ports .................................................................................................... 9

Link Port .................................................................................................. 9

Console Port ............................................................................................. 9

SNMP Management Port ....................................................................... 10

Emergency Alarm Port........................................................................... 10

Diagnostic Modes .................................................................................. 10

Dimensions and Weight ......................................................................... 10

Power Supply ......................................................................................... 10

Operating Conditions ............................................................................. 10

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

2.1. Installation Space Requirements .............................................................11

2.2. Delivered Items .......................................................................................11

2.3. Cable Connections ..................................................................................11

Power Supply Connector ....................................................................... 12

Grounding .............................................................................................. 12

E1 Port Connectors ................................................................................ 12

Link Port Connector (V.35, RS-530, RS-449) ....................................... 13

Cable Diagrams for Connections to Link Port ...................................... 14

V.35 Cable for Connection to DCE ............................................... 14

V.35 Cable for Connection to DTE ................................................ 14

RS-530 Cable for Connection to DСE .......................................... 15

RS-530 Cable for Connection to DTE ........................................... 15

RS-449 Cable for Connection to DCE .......................................... 16

RS-449 Cable for Connection to DTE ........................................... 16

SNMP Port Connector ........................................................................... 17

Console Port Connector ......................................................................... 17

Emergency Alarm Connector ................................................................. 18

Contents

Section 3. Operation..................................................... 19

3.1. Indicators ................................................................................................ 19

3.2. Alarms .................................................................................................... 21

3.3. Device Response to Emergencies .......................................................... 22

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

Port Loop ............................................................................................... 23

Tributary Loop ....................................................................................... 23

Local Link Loop .................................................................................... 24

Remote Link Loop ................................................................................. 24

3.5. Built-in BER Tester ................................................................................ 25

Link Testing Via Remote Loop .............................................................. 26

Enabling BER testers in Opposite Directions ........................................ 26

Section 4. Management over Console Port................ 27

4.1. Upper Level Menu ................................................................................. 27

4.2. Menu Structure ....................................................................................... 29

4.3. "Link statistics" Menu ............................................................................ 30

4.4. "E1 port ptatistics" Menu ....................................................................... 31

4.5. "Event counters" Command ................................................................... 32

4.6. "Loop" Menu .......................................................................................... 33

"Port loop" Menu ................................................................................... 34

"Tributary loop" Menu ........................................................................... 34

4.7. "Test" Menu ........................................................................................... 35

4.8. "Congure" Menu .................................................................................. 36

"Port conguration" Menu ..................................................................... 36

"Link" Menu .......................................................................................... 37

"SNMP" Menu ....................................................................................... 38

"Sensor input" Command ...................................................................... 39

"Factory settings" Command ................................................................. 39

"Save parameters" Command ................................................................ 39

"Restore parameters" Command ............................................................ 39

4.9. "Login to remote device" Command ..................................................... 40

4.10. "Reset" Command ................................................................................ 40

Section 5. Management over SNMP............................ 41

5.1. Conguring SNMP Parameters .............................................................. 41

5.2. Management Information Blocks (MIBs) .............................................. 42

6FMUX/SAT Multiplexer

Section 1. Introduction

1.1. Purpose

FMUX/SAT is a multiplexer with variable frame structure, which allows transmitting up

to four E1 channels over synchronous link equipment with codirectional interface, such

as satellite modem with V.35 DCE interface (see Section "1.3. Connection Diagram").

Note

Hereinafter term "E1" is used to denote data transmission channel with interface

complying with ITU-T G.703 standard for transmitting data with bit rate of 2,048

kbit/s in both framed mode in accordance with ITU-T G.704 standard, and unframed

(transparent) mode.

1.2. Features

•Data transmission from one to four E1 ports over synchronous link equipment

with codirectional interface. Link bit rate depends on the number of Е1 ports used:

Number

of Е1 Ports

Link

Bit Rate,

Mbit/s

48.448

36.336

24.224

12.112

•Support of ITU-T G.703 standard for 2,048 kbit/s, in both framed mode in accordance

with ITU-T G.704 standard, and unframed (transparent) mode

•Compliance with ITU-T G.703, G.823 standards

•Local and remote loops

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

•RS-232 console port for monitoring and control

•Auxiliary Ethernet 10Base-T port for management via SNMP

•Remote management

•Emergency alarms ("dry contacts")

•1U high unit design for a 19" rack

Section 1. Introduction

•Built-in power supply unit for mains or battery

E1 port data are transmitted independently, the clock frequency of each port does not

depend on that of the other ports.

The device may be managed over the RS-232 interface using ASCII terminal (console),

or over SNMP protocol over auxiliary Ethernet 10BaseT port.

Loop and built-in BER tester management is performed from the console. BER tester

allows measuring error rate in the link path. The measurements are performed using

xed or pseudo-random code in accordance with ITU-T О.151 standard (the pattern

length is 215 - 1 = 32,767 bits).

A remote login ability is provided for testing remote device ports from local console,

when there is no personnel at the other end of the link. Commands to remote device are

sent over monitoring channel, organized in the link path.

The FMUX/SAT is equipped with LED indicators, which show state of ports and link

equipment, loops enabled states, and testing modes.

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

switch on external device to call the operations personnel (in accordance with ITU-T

G.742 Standard, s. 10).

The multiplexer has capability of rmware upgrades.

1.3. Order Code

e FMUX/SAT multiplexer is manufactured as a device in 1U high metal enclosure, for

mounting in a 19” rack.e multiplexer is equipped with auxiliary Ethernet 10Base-T

port for management over SNMP protocol.

e power supply device for 176 - 264 VAC mains has the following order code:

FMUX/S – 4E1 – SAT – SNMP – AC

e device may be ordered with 36 – 72 VDC power supply. In this case "– AC" sux

in the order code must be replaced with "– DC".

8FMUX/SAT Multiplexer

1.4. Connection Diagram

General diagram for connecting FMUX/SAT multiplexers to data transmission equip-

ment may be presented as follows:

E1 port

Data

transmission

equipment

TXD-a,b

ETC-a,b

RTS

RXD-a,b

RXC-a,b

DSR

CTS

DTR

E1 port

TXD-a,b

ETC-a,b

RTS

RXD-a,b

RXC-a,b

DSR

CTS

DTR

E1 port

FMUX/SAT

Fig. 1. Diagram for connecting FMUX/SAT multiplexer

to data transmission equipment

Multiplexed data from E1 ports are transmitted over group link via data transmission

equipment, and are demultiplexed at the opposite side. Positive digital justication is

used for frequency recovery in each separate E1 link.

An example of data transmission equipment may be satellite link and pair of satellite

modems operating in codirectional mode ("codirectional" principle suggests that data

and corresponding clock signal are transmitted at the same direction). In this case RXD

signal and RXC clock signal are transmitted from one multiplexer, and received as TXD

and ETC by another multiplexer.

The RXC signal is generated on basis of transmitting multiplexer internal clock, and is

used for synchronization during group link data reception by receiving multiplexer. It

is important that data transmission equipment should transmit this signal to ETC input

of receiving multiplexer transparently.

The FMUX/SAT multiplexer is DCE, and supports operation with CD, DSR, CTS, DTR,

and RTS modem signals.

The multiplexer uses the RTS signal loss for indicating the non-operating state of data

transmission equipment (in this case "LOS" indicator on the multiplexer lights).

The DTR does not affect operations of the device, but its state is shown on console.

Section 1. Introduction

1.5. Specications

E1 Ports

Nominal bit rate ............................................................. 2,048 kbit/s

Encoding ........................................................................ HDB3

Frame structure .............................................................. Transparent G.703 stream

transmission in both framed

(G.704), and unframed mode

Error control ................................................................... Code violations

Link impedance .............................................................. 120 Ohm balanced (twisted

pair)

Receiver signal level ...................................................... 0 to -12 dB

Jitter attenuation ............................................................. In the transmit path

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

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

Connector ...................................................................... RJ-48 (female, 8 pin)

Link Port

Interface type ................................................................. Multistandard (V.35, RS-530,

RS-449); in the codirectional

mode

Clock frequency ............................................................. 8.448, 6.336, 4.224 or

2.112 MHz ± 30 ppm

Modem signals ............................................................... TXD, ETC, RXD, RXC, CD,

DSR, CTS, RTS

Connector ....................................................................... HDB44 (female)

Console Port

Interface type ................................................................. RS-232 DCE

Data transmission protocol ............................................ Asynchronous, 9600 bit/s, 8

bits/character, 1 stop bit, no

parity

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

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

10 FMUX/SAT Multiplexer

SNMP Management Port

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

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

Emergency Alarm Port

Connector ....................................................................... DB-9 (male)

Relay contacts current .................................................... Up to 600 mA

Relay contacts voltage ................................................... Up to 110 VDC; up to

125 VAC

Diagnostic Modes

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

BER tester ...................................................................... Built-in

Management ................................................................... Over RS-232 control port

(console), over SNMP, or

from remote device

Dimensions and Weight

Dimensions .................................................................... 444 mm × 262 mm × 44 mm

Weight ............................................................................ 3,400 grams

Power Supply

From AC mains ("-AC" option) ..................................... 176 – 264 VAC, 50 Hz

From DC source ("-DC" option) .................................... 36 – 72 VDC

Power consumption ........................................................ No more than 20 W

Operating Conditions

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

Relative humidity ........................................................... Up to 80 %, non-condensing

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