TECHNICAL PART OF THE TENDER DOCUMENTATION JN-B0712
PUBLIC TENDER JN-B0712
TECHNICAL PART OF THE TENDER
LJUBLJANA
NOVEMBER, 2015
RTV SLOVENIJA - ODDAJNIKI IN ZVEZE
1
TECHNICAL PART OF THE TENDER DOCUMENTATION JN-B0712
Contents:
1.
DECLARATION OF TERMS ..................................................................................... 3
2.
GENERAL REQUIREMENTS ................................................................................... 3
2.1.
INSTRUCTIONS FOR OPERATION AND MAINTENANCE ..................................... 3
2.2.
DATE AND TIME ...................................................................................................... 4
2.3.
EQUIPMENT MANAGEMENT .................................................................................. 4
2.4.
GROUNDING AND POWER SUPPLY ..................................................................... 4
2.4.1.
GROUNDING ........................................................................................................... 4
2.4.2.
POWER SUPPLY ..................................................................................................... 5
2.4.3.
DC POWER SUPPLY ............................................................................................... 5
2.5.
ENVIRONMENT CONDITIONS ................................................................................ 5
2.6.
PHYSYCAL DIMENSIONS ....................................................................................... 5
2.7.
ETHERNET INTERFACES....................................................................................... 5
2.7.1.
DATA INTERFACES ................................................................................................ 6
2.7.2.
MANAGEMENT ETHERNET INTERFACE ............................................................... 6
2.8.
ALARMS AND THEIR SIGNALIZATION................................................................... 6
2.9.
EQUIPMENT TYPE, QUANTITIES AND LICENSES ................................................ 7
3.
ADDITIONAL TECHNICAL REQUIREMENTS.......................................................... 7
3.1.
ADDITIONAL REQUIREMENTS FOR INSTALLATION ............................................ 8
RTV SLOVENIJA - ODDAJNIKI IN ZVEZE
2
TECHNICAL PART OF THE TENDER DOCUMENTATION JN-B0712
1.
DECLARATION OF TERMS

Encoder is an electronic circuit with appropriate software which encodes, packetizes
and multiplexes the channels of one input stereo audio into a transport stream over
IP.

Encoding module is an electronic circuit containing of one or more encoders.

Decoder is an electronic circuit with appropriate software which executes its
processes inversely as the encoder.

Decoding module is an electronic circuit containing of one or more decoders.

Equipment chassis contains one or more encoding modules or one or more
decoding modules or a mixture of both module types. It assures the powering and
audio connections for the inserted modules and a connection to the earth/signal
reference point.

Seamless switchover is special way of switching between two input signals where
the switchover itself does not cause noticeable effects on the output signal. Such a
switching is used, for example when switching between two data traffic flow, where
one of them breaks.
2.
GENERAL REQUIREMENTS
2.1. INSTRUCTIONS FOR OPERATION AND MAINTENANCE
At equipment delivery the Bidder must provide complete technical documentation needed for
user’s daily work and maintenance in Slovene or English language. The documentation
should be in pdf electronic format. The documentation must reflect the actual state of the
equipment at the time of Final Acceptance. The documentation must include the user manual
for operation, maintenance and system integration to the monitoring system of the
Contracting Authority.
The technical documentation should comprise of at least these items:

Detailed description of system and individual modules,

List and description of all service exercises as required by the manufacturer,

Wiring scheme and physical layout of all parts,

Description of configuration process and thereafter the integration process to the
existing higher level monitoring system by SNMP or HTTP (XML) protocol,

MIB files with detailed descriptions,

Description of program functions and error messages,

Documentation of protocols of all control and supervisory interfaces,

All system and administrative passwords.
RTV SLOVENIJA - ODDAJNIKI IN ZVEZE
3
TECHNICAL PART OF THE TENDER DOCUMENTATION JN-B0712
2.2. DATE AND TIME
Individual devices must use the local date (time) either get / synchronized from NTP server
or manually set. Unavailability of the configured NTP server must be alert.
Each manual change the local time of the device should be reflected in a change in timing
marks of alarms.
2.3. EQUIPMENT MANAGEMENT
Each network element must have a built-in web server, which allows autonomous and
independent management by using a web browser.
For web access at least two levels of access must be defined: administration and
monitoring. At least the administration level of access must be protected by a username and
password.
In the equipment a SNMP agent or a HTTP server with XML command syntax must be
implemented that enables the complete control and management. All the necessary MIB and
XML structures must be attached to the technical documentation. The MIB manual must also
explain the correct way of continuous pulling the devices state by SNMP commands.
The remote interface of devices must have implemented a SNMP agent that operates via
UDP protocol. The SNMP agent shall send TRAPs, error messages (urgentAlarmTrap),
warnings (WarningTrap) and information messages (InfoTrap ). When the fault is restored
information on the completion of the event (endofAlarmTrap) shall be sent. Changing of the
SNMP agent settings shall be possible through the web interface.
The web interface must enable at least:

Setting of at least two IP addresses for sending notifications (Trap receiver IP
address)

Editing of various events list and change their level (Alarm, Warning and Info).
The functions GET, SET, WALK and TRAP must working correctly without errors.
2.4. GROUNDING AND POWER SUPPLY
The Bidder must ensure that all devices can be powered from two different power supply
systems. If the offered equipment has no two built-in power supplies, the Bidder must provide
a connection through other technical solution. In case of switching off one power supply, no
signal from/to the coding-decoding equipment should be stopped or degraded.
2.4.1. GROUNDING
All equipment must have a connection point on their chassis for grounding or linking to a
technical reference point.
RTV SLOVENIJA - ODDAJNIKI IN ZVEZE
4
TECHNICAL PART OF THE TENDER DOCUMENTATION JN-B0712
2.4.2. POWER SUPPLY
CE AND EMC
All equipment must be CE marked and must meet technical requirements and standards in
force in the Republic of Slovenia related to electrical power supplies, grounding and safety
measures against electrical current strike like:

SIST EN 60950 and

SIST EN 61140.
All offered equipment must also fulfill the following Slovenian EMC standards:

Technical EMC norm (ur.l.RS št. 84/01, št. 32/02 in 132/06),

SIST EN 50081-1,

SIST EN 50082-2,

SIST EN 55022 and

SIST EN 55024
2.4.3. DC POWER SUPPLY
All the equipment will be connected to -48 VDC. The positive conductor is connected to earth
as defined in EN 300 253. The technical environment of the Contracting Authority confirms to
ETSI EN 300 132-2.
2.5. ENVIRONMENT CONDITIONS
System must operate under following conditions:

Temperature range: +5 °C ÷ 35 °C

Relative humidity: <90%

2.6. PHYSYCAL DIMENSIONS
All devices must be prepared for mounting to 19” rack. The bidder must include the rack
mount kits. Due to the space utilization, equipment in 1U high chassis is preferred.
2.7. ETHERNET INTERFACES
The bided equipment must have more electrical Ethernet connectors. Electrical Ethernet
interfaces must use RJ-45 type connector for connecting the CAT 5E/6 type of network
cables. Interfaces should show their status with LEDs
The equipment must separate data and control traffic. The Contracting Authority requires two
data interfaces and one management interface. The data interfaces must be of type
100BASE-TX or 1000BASE-TX (IEEE 802.3 Clause 25) with auto-speed functionality for
RTV SLOVENIJA - ODDAJNIKI IN ZVEZE
5
TECHNICAL PART OF THE TENDER DOCUMENTATION JN-B0712
connection to two separated IP network. The management interface allows the management
of the equipment and can be either the same type as data interfaces. The management
interface can be joined with the data interface. In that case the management must be isolated
from data with a VLAN.
2.7.1. DATA ETHERNET INTERFACES
Data interfaces of devices transmit / receive encapsulated linear audio over IP data stream.
The Contracting Authority requires two data ports for connectivity to the existing redundant
data network of the Contracting Authority.
2.7.2. MANAGEMENT ETHERNET INTERFACE
The devices will be through their management Ethernet interfaces connected to existing
Ethernet switches of the Contracting Authority. Devices must ensure management interface
that shall provide:

Local management / control with the laptop,

Distant management / control /alarming,

FTP or other protocol for data transfer (for upgrads ,logs,..),

SNMP or HTTP (XML) communication for monitoring / tracking the equipment status
and alarms.
The bidder must provide MIB files in electronic form. MIB data structure must conform to the
firmware of the devices at Final Acceptance.
2.8. ALARMS AND THEIR SIGNALIZATION
The equipment must signal the errors based on:

Incorrect equipment operation,

Loss of incoming data stream,

Wrong incoming data stream,

Errors in the incoming data stream.
At alarms the equipment must

Generate event log for all alarms,

Signal the alarm status over the web interface

Return the alarm status over SNMP TRAP message.
RTV SLOVENIJA - ODDAJNIKI IN ZVEZE
6
TECHNICAL PART OF THE TENDER DOCUMENTATION JN-B0712
2.9. EQUIPMENT TYPE, QUANTITIES AND LICENSES
The quantity of chasses, modules and required licenses for seamless switchover are
delivered in electronic form within the file Equipment_matrix_jn-b0712.xls.
The bidder must in addition to the basic operation licenses to deliver also the licenses for the
protective mode of operation with seamless switchover. The Contracting Authority will install
the switchover licenses onto the selected equipment according to the plan and discussion
with the bidder / manufacturer technical support.
3.
ADDITIONAL TECHNICAL REQUIREMENTS
The Contracting Authority is purchasing equipment that allows audio signal interconnections
between the communication points of existing IP transmission system.
The following link types are planned by Contracting Authority:

Contribution links for the mutual exchange of radio programs between studios,

Distribution links for individual regional radio program content delivery from regional
studio to the main headend in Ljubljana and towards the transmitter locations.
The contribution part of the system is built as a point to point system. This means that each
encoding module at the transmitting side has corresponding decoding module on the
receiving side. Both modules are interconnected via the IP backbone system of the
Contracting Authority.
The distribution part of the system is built in as one-to-many system. Here IP multicasting is
used.
Since the main purpose of the transmission is radio signal and because it contains a lot of
interactive content, it is necessary to ensure the shortest possible delay. The Bidder must
specify the coding-decoding delay for linear mode of audio transmission at 0ms
receiving buffer for IP RX smoothing.
In particular, it is necessary to provide a rapid mechanism for error correction. The
Contracting Authority requires the use of technology like SMPTE 2022-7or alike, where the
same program content is transmitted through two RTP data flows. On the receiving side the
seamless switchover mechanism selects always the uncorrupted data packets. In this way,
the decoder device always operates without corrupted packets. Each two-dimensional error
correction with FEC (PRO FEC COP3) requires more processing time which is for interactive
radio content not acceptable.
The Contracting Authority requires an advanced solution for the transmission of digital AES /
EBU audio signals in linear, uncompressed way between the communication points of the
IP transmission system.
RTV SLOVENIJA - ODDAJNIKI IN ZVEZE
7
TECHNICAL PART OF THE TENDER DOCUMENTATION JN-B0712
On the transmit side encoders are used for all the program and contribution links. They
transport the linear AES / EBU input signals over the IP packets. The equipment must
support unicast and multicast mode of transmission. These packets are then distributed
via the existing IP network to the receiving locations. There the received packets are again
repacked back to AES / EBU and are connected to the studio or transmitters. In the other
direction, the whole procedure is repeated in reverse order.
All audio content from the studios are connected to the bided equipment chasses via existing
distribution amplifiers. The program content is coded according to AES / EBU / EBU Tech
3250 / AES3.
The quantity of chasses, modules and required licenses for seamless switchover are
delivered in electronic form within the file Equipment_matrix_jn-b0712.xls.
The MS Excel file shows the equipment divided into modules by location, functionalities by
direction (either encoder or decoder) and intention as contribution / distribution.
The bided equipment should be modular, consisting of several modules. The configuration of
modules per chassis is free choice of the bidder except at Ljubljana location. There the spare
and working modules must reside in two physically separated chassis. The input program
audios will be connected to both chasses (main/spare) from distribution amplifiers. Both
chasses have to ensure working output IP streams which will end on Contracting Authority’s
switch. There the main/spare streams will be selected and transmitted over the IP
transmission network.
3.1. ADDITIONAL REQUIREMENTS FOR INSTALLATION
The Bidder must deliver for the offered equipment also the following:

The corresponding connecting cables for AES / EBU inputs / outputs if a multicore
cable is used. XLR type of signal connectors are required for all AES / EBU input /
output audio connections.

Equipment schematic and wiring diagram per site from where the exact configuration
of individual equipment is clearly seen together with the wiring.
The decoders must be able to sync their output AES / EBU signals to an external clock
signal.
RTV SLOVENIJA - ODDAJNIKI IN ZVEZE
8