Inter-M IRX-108 Brochure

FTA-108S

FRA-108S

ITX-102/108

IRX-102/108

Audio & Data Transmission Solution

Development Background

The public address system is a mean of delivering voice information over large areas. Depending on the information
and the area to cover the PA specification may require a means to transport the signal large distances.
A Long-line public address (LLPA) system is any public address system with a distributed architecture, normally across
a wide geographic area. Systems of this type are commonly found in the rail, light rail and metro industries and allow
announcements to be triggered from one or several locations to the rest of the network. Traditionally LLPA systems
use low bandwidth legacy copper, normally PSTN lines using DSL modems, or media such as optical fiber, or IP-based
networks.
Inter-M has developed solutions to transmit High quality uncompressed multi-channel audio and control over TCP/IP
networks, dedicated copper lines and Optical fiber cables. High quality digital voice and BGM signal can be transported
over long distances using Inter-M’s FTA/FRA-108S, ITX/IRX-108, ITX/IRX-102 products.
FTA/FRA-108S will transport high quality 8-channel audio signals, serial data and contact closure triggers over long
distances (up to 24km) using Single-mode fiber-optic cable.
ITX/IRX-102/108 will transport high quality 2 and 8-channel audio signals, serial data and contact closure triggers over
relatively short distances (up to 100 meter) using standard cat5e cabling.
These products will transport high quality uncompressed audio signals combined with data and contact triggers with
very short and relatively small propagation delay of 1.0 ms.
As the requirements of public address systems changes the R&D engineering team of Inter-M is ready to deliver new
innovative products to meet market and systems demands.

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AOE, FTA/FRA, ITX/IRX

FTA/FRA-108S ITX/IRX-108, ITX/IRX-102 AOE-212N

Comparison Chart, Channel / Distance

Connection Type

Max. distance

Audio Channel

Sampling

Frequency

Frequency

Response

S / N

T.H.D

Data Type

Data Speed

Trigger Channel

Power Source

Operating

Temperature

Dimension

Single Mode

Optical Cable

24km / 14.91mile 150m / 492ft ∞

(SC)

8 CH 2 CH

24 Bit, 48kHz 24 Bit, 8~48kHz

20Hz ~ 20kHz 30Hz ~ 20kHz

106dB 92dB

0.01% 0.1%

AC 220V-240, 50/60Hz~, DC 24V

482 (W) X 44 (H) X 280 (D) mm / 19(W) x 1.7(H) x 11(D)in

UTP (Dedicated Line) UTP (ETHERNET)

RS-232C, RS-422

Max. 19,200bps

8 CH

-10℃ ~ +40℃ / 14℉ ~ 104℉

Accessory

Audio&Data Transmit Solution

Optional Communication Module

LAN/WAN available

Multicast:1:200, Unicast:1:20

High-quality audio data transmission

Audio + data, single cable transmission system

Uncompressed digital audio transmission (24bit, 48kHz)

High-quality audio, better than S / N 100dB, THD 0.01% or less

Up to 8 channels of audio transmission

Data (422/232/8 contacts trigger) transfer

Up to 19200bps data communication

Optical long-distance signal transmission (24km, UTP 150m)

Long-line transmission using single-mode fiber-optic cable (FTA / FRA)

FTA-108S
FRA-108S
ITX-102/108
IRX-102/108

FEATURE

Easy transfer using UTP cable (ITX / IRX)

Neutrik Ethercon connector (ITX / IRX)

High-quality hybrid Power Supply

User-friendly Functionality

PAD switch

Signal clip level indicators

Sending and receiving data, power LED

Fiber-optic cable connection status indicator LED

Compact 1U size

Simultaneous AC & DC redundant power

Construction for the purpose of convenience features

Euroblock connectors for Easy Audio Wiring

Detachable handle

Balanced Audio input

Optional Plug-in Communications module

Audio&Data Transmit Solution

Optional Plug-in Communications module

These long-distance audio and data transport devices allow for easy of design and construction of

Long-Line PA systems at budget saving prices.

Long-Line transmission using single-mode fiber-optic cable (FTA / FRA)

Easy connectivity using UTP cable (ITX / IRX)

AUDIO 8CH

Contact Trigger

Professional Quality Audio

Long-distance digital transmission of balanced analogue audio signal without electro-magnetic inter

ference, signal loss or distortion. High quality uncompressed 24bit digital audio at 48kHz transmitted

RS-232RS-422

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over TCP/IP network with a S/N better than 100dB, THD less than 0.01.

THD : Total harmonic distortion stands. The lower THD means that the equipment produces a more accurate reproduction by reducing

harmonics added by electronics and audio media

S / N Ratio : Stands for Signal to Noise Ratio expressed in dB. It is a measurement that compares the level of a desired signal to the level

Audio&Data Transmit Solution

of background noise. It is defined as the ratio of signal power to the noise power. The higher the ratio indicates more signal
than noise.