Pulsar TC-10B, User Manual

Page: 50 / 190

Page 3–6 October 2003
TC–10B System Manual
Technologies, Inc.
3.7 Disconnections
3.8 Jumper Controls
Jumpers are set during installation, depending on
the particular TC–10B features and applications
(see Figure 3-5).
3.8.1 Power Supply PC Board
Jumper JU1 for optional Alarm Relay establishes
contact type during loss of power condition
(NO/NC).
3.8.2 Keying PC Board
For proper selection of jumpers, refer to Figures
2-5 through 2-14.
JU1 Carrier Start 15V, 48V, 125V, 250V
JU2 Carrier Stop 15V, 48V, 125V, 250V
JU3 Low-Level 15V, 48V, 125V, 250V
Key
JU7 Carrier Start/ START,STOP
Stop Priority
JU6 Carrier Start NORM (+), INVERT (-)
JU5 Carrier Stop NORM (+), INVERT (-)
JU4 Low-Level NORM (+), INVERT (-)
Test
JU8 Carrier Stop (KA-4, SKBU-1)
3.8.3 Transmitter PC Board
There are no jumpers on the standard Transmitter
PC Board.
Optional Transmit Time Limiter Aux. Board
JMP1 Alarm Contacts (NO/NC)
When jumper is set in “NO” position,
and relay is de-energized, the alarm
contacts will be “OPEN”. When
jumper is in “NC” position, and relay
is de-energized, the alarm contacts will
be “CLOSED”.
3.8.4 10W PA PC Board
Jumper JU1 for the RF Output Monitor Relay can
be set for a NO or NC contact. It is not used as an
alarm but instead just monitors if a signal is being
transmitted.
3.8.5 RF Interface PC Board
Matching Impedance Jumpers:
• JU4 50 Ω
• JU3 75 Ω
• JU2 100 Ω
2-wire or 4-wire RF Termination
• JU1/JU5 “IN” (2-wire)
• JU1/JU5 “OUT” (4-wire)
Attenuator Override Jumper (JU6)
(See Table 3-1.)
NOTE
JU1 is shipped in the “NC” state.
!
CAUTION
NEVER DISCONNECT THE CARRIER LEAD-IN
BETWEEN THE LINE TUNER AND THE
COUPLING CAPACITOR UNLESS THE LOW
POTENTIAL
END OF THE COUPLING
CAPACITOR IS GROUNDED.
BEFORE DISCONNECTING THE CARRIER
LEAD-IN CONDUCTORS, CLOSE THE RF
GROUNDING SWITCH AT THE BASE OF THE
COUPLING CAPACITOR.
WARNING:
IF THIS GROUND IS NOT
PROVIDED, DANGEROUS VOLTAGES CAN
BUILD UP BETWEEN THE LINE TUNER AND
COUPLING CAPACITOR.
NOTE
JU1/JU5 are is shipped in the “IN” (2-wire) state.
JU4 is shipped in the “50
Ω
” state.