Tait P25 CG, Инструкция по установке и эксплуатации

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TB9100/P25 CG Installation and Operation Manual Description 11
© Tait Electronics Limited January 2007
Any references in this manual to the following do not apply to the P25
Console Gateway:
■
Transmitting
■
PA
■
Receiving
The P25 Console Gateway has one capability that the TB9100 base station
does not have. It can serve as an encryption/decryption point. Many
references to encryption apply only to the Console Gateway.
When “base station” is referred to, this generally applies to the P25 Console
Gateway as well. When “reciter” is referred to, this generally applies also to
the gateway module.
1.3 Modules
The TB9100 base station or P25 Console Gateway consists of a subrack with
one of the following:
■
Up to two transmit/receive channels
■
Up to five receive-only or gateway channels with a power management
unit (PMU)
■
Up to seven receive-only or gateway channels (external power supply
required)
The one PMU supplies and manages power to the whole subrack. One
reciter or gateway module is needed for each channel and one PA is needed
for each transmit/receive channel. There is also a front panel with fans, and
a control panel. The modules are interconnected at the front of the subrack.
External connections to the modules are located at the rear.
Modules come in different variants depending for example on the RF band
or the supply voltage. The PA and the PMU are common to the TB8100
base station. Receive-only base stations and P25 Console Gateways do not
need PAs.
Each module is inserted into the TB9100 4U subrack from the front and is
secured at the front with a metal clamp. Both clamp and module are easily
removed for rapid module replacement. The modules are secured laterally
with plastic guides that clip into the top and bottom of the subrack. These
guides can be easily repositioned to change the configuration of a subrack.
The heavier modules are also secured laterally by metal tabs at the rear of the
subrack.
The following provides a brief description of the available modules.