Pulsar TCF-10B, System Manual, Page: 55 / 249

3.7 Disconnections
3.8 Jumper Controls
Jumpers are set during installation, depending on
the particular TCF–10B features and applications
involved (see Figure 3-4).
3.8.1 Power Supply PC Board
Jumper (JU1) for the optional Alarm Relay estab-
lishes contact type during loss of power condition
(NO or NC).
3.8.2 Keying PC Board
JU1 Transmitter Keying (NORM or
INVERT)
JU2 Directional Comparison or Phase
Comparison (DCR or PCR)
JU3 1 W Guard, 10 W Trip or 10 W Guard,
10 W Trip (1/10 W or 10/10 W)
JU4 2-Frequency System or 3-Frequency
(Optional) System (2F or 3F)
JU6 Activates Shift High Contact Alarm
(IN or OUT)
JU7 Activates Shift Low Contact Alarm
(IN or OUT)
JU8 Selects NO or NC contact for Shift
High (NO or NC)
JU9 Selects NO or NC contact for Shift
Low (NO or NC)
JU10–
JU14 Input voltage selections for different
Keying inputs (15 V, 48 V, 125 V, or
250 V)
3.8.3 Transmitter PC Board
There are no jumpers to be set on the Transmitter
PC Board during installation.
3.8.4 10W PA PC Board
Jumper (JU1) for the optional Alarm Relay estab-
lishes loss of power condition (NO or NC).
3.8.5 RF Interface PC Board
Matching Impedance Jumpers:
JU4 50 ohms
JU3 75 ohms
JU2 100 ohms
2-wire or 4-wire RF Termination:
JU1 and JU5 “IN” (2-wire)
JU1 and JU5 “OUT” (4-wire)
Attenuator Override Jumper (JU6):
• NORM Sensitivity (20 mV to 70 V for
narrowband or 60 mV to 17 V for
wideband)
• HIGH Sensitivity (5 mV to 17 V for
narrowband or 15 mV to 17 V for
wideband)
3.8.6 Receiver PC Board
Jumper (JU1) has a “Disable” position which
allows the Receiver to be turned “OFF” when the
Transmitter is keyed; the “Norm” position has no
effect.
Page 3–6 April 1997
TCF–10B System Manual
Technologies, Inc.
!
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 DISCON-
NECTING THE CARRIER LEAD-IN
CONDUCTORS,
CLOSE THE GROUNDING
SWITCH AT THE BASE OF THE COUPLING
CAPACITOR.
IF THIS GROUND IS NOT
PROVIDED, DANGEROUS VOLTAGES CAN
BUILD UP BETWEEN THE LINE TUNER AND
COUPLING CAPACITOR.
NOTE
JU1 is shipped in the “NC” state.
NOTE
JU1 is shipped in the “NC” state.