Tait International Limited TBCK4B Manual Do Utilizador

TB9400 Installation and Operation Manual

© Tait Electronics Limited September 2011

A 1 PPS signal is required for simulcast 

base stations

. 

This and the external 

frequency reference can be provided, for example, by a Tait T801-4 
Frequency Reference. For more information, see the T801-4 Installation 
and Operation Manual (MBA-00033-xx).

Use a 50 

Ω coaxial cable (RG58 or RG223) to connect the source to the 

base station’s

 1 PPS input. You can daisy-chain up to six 

base stations

 using 

T-junctions. We recommend that the cable length between the first and last 
load is kept to a minimum. This will reduce any propagation variation 
between 

base stations

. The maximum overall cable length is 30 m. Terminate 

the last connection with a 50 

Ω resistor, otherwise reflections of the 1 PPS 

pulse may occur. 

The RJ-45 socket on the reciter’s rear panel provides the 10BASE-T or 
100BASE-T Ethernet connection to the other devices in the network. Use 
Cat-5 cable to connect this socket to the TaitNet P25 Network via a router 
or switch. 

If necessary, refer to 

 for a list of Ethernet 

connection pin allocations.

The longest length of cable must be between 
the source and the first 

base station

use short lengths of cable 
between each 

base station

maximum of six 

base station

 

loads on one 1 PPS output

50 

Ω termination