Tait TN8271 User Manual (English)

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TN-2115-SR

25 June 2013

www.taitradio.com

Page 1 of 6

Technical Note TN-2115a-SR

TN8271 Network Gateway Release Note v1.02.06

25 June 2013

This technical note contains information to accompany the May 2013 release of the TN8271 Network

Gateway software version 1.02.06.

1. What’s new in this release

1.1 Enhancement of the RTP transmit timing

Tait reference:

TIMS00098965

When the gateway transcoded AMBE VDP to G.711 RTP, it sent 3 RTP

packets at once. The next three were then sent approximately 60 ms later.

The gateway now buffers and times the RTP so that each packet is sent at

20 ms intervals.

2. Compatibility

Kernel Compatibility This version of the Network Gateway software works with kernel version

QNA10ASK036007

The following table shows which combinations of kernel and application

firmware are supported:

Kernels

3.1.01 3.6.04 3.6.06 3.6.07

Applications 0.00.06 OK X X X

0.00.25 OK X X X

0.00.26 X OK OK(*) X

0.00.28 X OK OK(*) X

0.00.31 X OK(*) OK X

1.00.00 X OK(*) OK X

1.00.01 X X X OK

1.01.04 X X X OK

1.01.05 X X X OK

1.02.06 X X X OK

*The Network Gateway will operate normally, but there could some problems when using

ethtool.

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Tait TN8271 Specifications

General

Operating Temperature	-30°C to +60°C
Storage Temperature	-40°C to +85°C
Humidity	95% non-condensing
Current Consumption (Transmit)	2.5 A
Channel Spacing	12.5 kHz / 25 kHz
Dimensions	165 x 44 x 138 mm (6.5 x 1.7 x 5.4 inches)
Weight	1.1 kg (2.4 lbs)
Voltage Range	10.8 to 16 V DC
Frequency Range	400-470 MHz
RF Output Power	1-5 W
Modulation	FM
Power Supply	12 VDC nominal (10.8 to 16 VDC)