Page 2-14 V10/V7.5/V5/V3.5 Installation and Operation Manual
Issue 3.5 Section 2 Preparation for Use and Installation
2.2.16.3 High Reflected Power Alarm
An alarm output that indicates the peak
reflected power is exceeding 276 W (V10),
207 W (V7.5), 138 W (V5) or 103 W (V3.5) is
available on TB1-10 (HIGH REFLD
ALARM).
2.2.16.4 Changeover Alarm
An alarm output that indicates an automatic
changeover has occurred on the exciter,
IPA, IPA PS or fan PS and the reserve
(standby) module is enabled as the active
exciter, IPA, IPA PS or fan PS is available
on TB1-8 (CHGOV ALARM).
NOTE
In V5/V3.5 transmitters, the exciter, IPA, IPA
PS and fan PS have their own independent
reserve (standby) options, which can be
controlled separately. The same is true for
V10/V7.5 transmitters except that the IPA
and IPA PS controls are ganged together
(IPA A with IPA PS A and IPA B with IPA PS
B).
2.2.16.5 PA/Module Fail Alarm
An alarm output that indicates the RF output
is reduced because an RF power module
has failed or has been turned off and is not
contributing to the RF output is available on
TB1-9 (PA FAIL ALARM).
2.2.16.6 Interlock Open Alarm
An alarm output that indicates the RF output
is inhibited because an external interlock
switch has been opened is available on
TB1-5 (INTLK OPEN ALARM).
2.2.16.7 IPA/RF Fail Alarm
An alarm output that indicates the RF output
is inhibited because of an exciter failure, IPA
output low, or IPA VSWR condition is
available on J6-3.
2.2.16.8 High Temperature Alarm
An alarm output that indicates the
temperature of the intake air, exhaust air,
reject load, PA or IPA exceeded their
maximum temperature threshold is available
on TB1-11 (HIGH TEMP ALARM).
2.2.16.9 Low RF Alarm
An alarm output that indicates the RF output
power is less than a user configurable
threshold (default is 50%) is available on
TB1-7 (LOW RF ALARM).
2.2.17 Remote Status Indications
Outputs that indicate the status of operator
controlled circuits are available on the remote
interface PWB (A44) [see Figure 2-7a
(V10/V7.5) or 2-7b (V5/V3.5) for pin
assignment]. A switching device for each
output provides a current-sink-to-ground for a
logic true status condition. Each circuit must
present impedance between the switching
device and a dc voltage source that limits
current to 50 mA. +15V is available at TB1-18
of the remote interface PWB. If an external dc
power source is used, it must not exceed
+24 V. Its return must be connected to a
GND terminal [see Figure 2-7a (V10/ V7.5) or
2-7b (V5/V3.5)] on the remote interface PWB.
Unless otherwise noted, all remote interfacing
is made to the remote interface PWB.
2.2.17.1 Remote Control Status
A status output that indicates the local/
remote control status of the transmitter is
available on J4-22. A logic true condition is
present when remote control is selected. A
logic false condition is present when local
control is selected.
2.2.17.2 RF On Status
A status output that indicates the on/off
status of the transmitter's RF power stage is
available on TB1-14 (RF ON STATUS). A
logic true condition is present when the RF
power stage is enabled and ready to
produce RF output. A logic false condition is
present when the RF power stage is turned
off and will not produce RF output.
2.2.17.3 Active Exciter Status
A status output that indicates which exciter
is enabled as the active exciter is available
on TB1-15 (EXCTR STATUS). A logic true
condition is present when exciter 'B' is
enabled as the active exciter. A logic false
condition is present when exciter 'A' is
enabled as the active exciter.
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