02.06  D6783e0Subject to change
Ebertstraße 30a
D-52134 Herzogenrath Tel:  +49 (0)2407-577-0Fax: +49 (0)2407-577-99
E-mail: telecom@head-acoustics.de WEB:  www.head-acoustics.de
acoustics  GmbH
DESCRIPTION
The transmission performance require-ments for digital wideband wireline termi-nals specified by the Northamerican stan-dard TIA-920 were implemented by HEAD acoustics into a measurement standard for the communication quality analysis system ACQUA.
The measurements can be modified or extended if required in order to conduct additional tests. The tests can be combined in any way to create individual test se-quences.
Combined with the advanced commu-nication quality analysis system ACQUA and the calibrated front end MFE VI or VI.1, the TIA-920 test suite with its pre-defined measurement descriptors and au-tomated measurement sequences allows the fast and easy acquisition, analysis and documentation of measurement data.
APPLICATIONS
•Automated Analysis
of wideband digital wireline terminals according to standard TIA-920
TIA-920(Code 6783)
Transmission R equirements for Digital Wideband Wireline Terminals
ACQUA User Interface with Measurement Tree and Result Diagram Window for TIA-920
MEASUREMENTS
The following is a complete list of all measurements included in the TIA-920test suite:
Ambient Noise & Delay o Ambient noise level
o Handset Send / Receive Latency (Advisory)
Handset -Technical Requirements
o Handset Send / Receive Frequency Response (ITU-T P .50 / P .501)
o Handset Wideband SLR / RLR (ITU-T P .50 / P .501)
o Handset Talker Sidetone nom. / max. /min. vol.  (ITU-T P .50 / P .501)o Handset Send / Receive Noise o Handset Send / Receive Single Frequency Interference
o Handset Receive Comfort Noise (Advisory)
o Handset Send Distortion and Noise (160 / 315 / 502 / 803 / 1004 /2008 / 3150 Hz)
o Handset Receive Distortion and Noise (160 / 315 / 502 / 1004 / 2008 /3150 Hz)
o Weighted Terminal Coup. Loss (TCLw)IP -10 / -16 / -26 dBm0
o Weighted Terminal Coup. Loss (TCLw)PCM -10 / -16 / -26 dBm0
o Stability Loss (Method 1) -16 dBm0 / -10 / -26 dBm0
o Stability Loss (Method 2) -16 dBm0 / -10 / -26 dBm0
o Long Duration Max. Ac. Pressure, 3.4Ear, 8 N / 13 N
o Short Duration Ac. Pressure, 3.4 Ear, 8N / 13 N
Headset -Technical Requirements
o Headset Send / Receive Frequency Response (ITU-T P .50 / P .501)o Headset Wideband SLR (ITU-T P .50 /P .501)
o Headset Wideband RLR, monaural /binaural (ITU-T P .50 / P .501)o Talker Sidetone for supra-aural
headsets, monaural / binaural, nom. /min. / max. vol. (ITU-T P .50 / P .501)o Talker Sidetone for insert headsets,monaural / binaural, nom. / min. /max. vol. (ITU-T P .50 / P .501)o Talker Sidetone for intra-c
onchial headsets, monaural / binaural, nom. /min. / max. vol. (ITU-T P .50 / P .501)o Headset Send Noise
o Headset Send / Receive Single Frequency Interference
o Headset Receive Noise, monaural /binaural
(continued on reverse)
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Generator and Analyzer
represented by
Typical Test Setup
(continued from front page)
o Headset Send Distortion and Noise (160 / 315 / 502 / 803 / 1004 /2008 / 3150 Hz)
o Headset Receive Distortion and Noise (160 / 315 / 502 / 803 / 1004 /2008 / 3150 Hz)
o Weighted Terminal Coup. Loss (TCLw)IP -10 / -16 / -26 dBm0
o Weighted Terminal Coup. Loss (TCLw)PCM -10 / -16 / -26 dBm0
o Long Duration Max. Ac. Pressure, 3.4Ear
o Short Duration Ac. Pressure, 3.4 Ear
Hands-free -Technical Requirements (…Advisory“)
o Hands-free Send / Receive Frequency Response (ITU-T P .50 / P .501)
o Hands-free Wideband SLR / RLR (ITU-T P .50 / P .501)
o Hands-free RCV Volume Control, min./ max. (ITU-T P .50 / P .501)o Hands-free Send Noise
o Hands-free Send / Receive Single Frequency Interference
headseto Hands-free Receive Noise (nominal /maximum)
o Hands-free Send Distortion and Noise (315 / 502 / 803 / 1004 / 2008 /3150 Hz)
o Hands-free Receive Distortion and Noise
SYSTEM REQUIREMENTS
TIA-920 requires the following system components:
•ACQUA  Communication Analysis System as one of the following versions:
- Standard (Code 6810)
- Standard Workplace (Code 6830,for analysis only)
- Compact Systems ()•MFE VI.1 Measurement Front End (Code 6462); alternatively: MFE VI Measurement Front End (Code 6460)with HMA IV  Mouth Amplifier (Code 1411)
•HMS II.3 HEAD Measurement System (Code 1230)
•HHP II.1 Handset Positioning Mecha-nism (Code 1377)DELIVERY
•TIA-920 (Code 6783), delivered on CD as ACQUA database
•Keyfile  on diskette or CD •Manual

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