Glenayre Electronics Inc. GL-T8311SA Manual Do Utilizador

Glenayre Document Number: 9110.00166

GL-T8xx1 Transmitter System

Revision K: 08/30/99

OPERATION

t525.

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Copyright © 1999  Glenayre

Page: 5-1

These assemblies within the transmitter chassis have controls and indicators:

• PA compartment - see PA manual

• exciter - see exciter manual

• metering boards - (Figure 5-1, and Figure 5-2).

Metering board assembly 2000.00116 is used in GL-T8321, 8331, 8521, and 8531 trans-
mitter models. Assembly 2000.00513 is used is GL-T8311, 8411, and 8611 transmitter
models.

Also see Table 5-1 for more information.

The transmitter normally operates within the paging system in an unattended manner. Local
control is not intended for operation, but for setup, checkout, or maintenance. On the
metering board, LED1 lights when 28 Vdc is applied to it. No controls are available.

The PA does not contain an on/off switch, but turns on and off whenever the primary power
equipment is turned on and off. When the PA is on, it remains in a standby condition until
keyed. Turning off primary power (ac or dc) always turns off the transmitter (PA and
exciter).

The fan(s) are thermostatically-controlled. Fan speed can vary depending on PA loading.
The fan(s) do not contain an on/off switch, but turn on and off whenever the primary power
equipment is turned on and off. The fan(s) run continuously whenever primary power is on.
Jumper JW5 on the metering board is used to enable or disable variable fan speed control.
When it is set to position B, fan speed control is disabled and the fans run full speed at all
temperatures. When it is set to position A, fan speed control is enabled.