Glenayre Electronics Inc. GL-T8311SA Manual Do Utilizador

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Glenayre Document Number: 9110.00166
GL-T8xx1 Transmitter System
Revision K: 08/30/99
INSTALLATION AND SETUP
t524.
b94
Copyright © 1999  Glenayre
Page: 4-3
4.2.5.1
Special Considerations
Various options for the power supply permit operation at different line frequencies and
voltages. The supplied connector allows for these variations. If the supplied connector is
not used, be certain that the correct combination of line frequency and voltage is applied.
The power supply causes a large inrush of current when first turned on. The ac supply
breaker must be able to handle this brief surge.
4.2.6
Equipment Cabling
4.2.6.1
Ac Connections
Generally, all ac connections internal to the rack are made at the factory and should not need
to be modified. Refer to the power supply manual for additional details.
4.2.6.2
Dc Connections
If cable is being originally installed or replaced, be sure connections are sufficiently tight.
Refer to the power supply and related manuals for details.
4.2.6.3
Dc-Only Sites
Some installation do not use ac input power. If the transmitter is not racked and wired at the
factory, be sure to connect as shown in the documentation supplied with the retrofit option.
Note
For locations operating from a direct 28 Vdc source or an external power
supply, the dc supply cable must not exceed three meters (3 m) in length.
This restriction is critical to comply with the emission and immunity
requirements
4.2.7
PA Chassis Connections
Refer to Table 4-2, PA Chassis Connectors. As viewed from the back, RF input is on the
right; RF output is on the left; the power/IO connector is in the middle.
Table 4-2  PA Chassis Connectors
Connector
Description /Function
PA RF INPUT
type-N, quick-connect/ RF from exciter to PA unit
PA RF OUTPUT
type-N, quick-connect/ RF from PA to antenna
POWER/IO J1
DB-25, quick-connect/ power for... and I/O to and from, PA boards