Pulsar TCF-10B, System Manual, Page: 107 / 249

10.1.2 Keying PC Board Jumper
Controls
(The Keying PC Board Jumper Controls are
shown in Figure 10-1.)
JU1 Power “ON” (NORM/INVERT)
JU2 Directional Comparison/Phase
Comparison
JU3 1 W (Guard), 10 W (Trip)/10 W
(Guard), 10 W (Trip)
JU4 2-Frequency System/3-Frequency
(Optional) System
JU6 Activates Shift High Contacts
(IN/OUT)
JU7 Activates Shift Low Contacts
(IN/OUT)
JU8 Selects NO or NC contacts for Shift
High
JU9 Selects NO or NC contacts for Shift
Low
JU10–
JU14
(Input Keying voltage selections:
15 V, 48 V, 125 V, 250 V)
10.2 Keying Circuit Description
The Keying Module (see Figure 10-3, Schematic
1606C50S) provides an optically-isolated
interface between the carrier and the relay system
and controls the operation of the Transmitter
Module.
10.2.1 Customer Inputs
Customer inputs operate as described below (see
Figure 10-2):
DTT Key
With jumper JU10 set, input will be initiated when
the appropriate voltage level (15 V, 48 V, 125 V or
250 V) is applied to pins A-10/C-10.
52b Keying or Power Boost
With jumper JU12 set, input will be power boost
initiated when the appropriate voltage level (15 V,
48 V, 125 V or 250 V) is applied to pins
C-16/C-22.
Power Off
With jumper JU13 set, when jumper JU1 is in
NORM position, the transmitter will be keyed
“ON” when proper voltage level (15 V, 48 V,
125 V or 250 V) is applied to pins A-16/C-22.
When JU1 is in the INVERT position, the trans-
mitter will be keyed “ON” when voltage is
removed from input A-16/C-22.
UB or PC Key
With jumper JU14 set, input will be initiated when
the appropriate voltage level (15 V, 48 V, 125 V or
250 V) is applied to pins A-22/C-22.
External Voice Key
With jumper JU11 set, input will be initiated when
the appropriate voltage level (15 V, 48 V, 125 V or
250 V) is applied to pins A-12/C-12.
Internal Voice
This input (C-24) will be initiated when the
optional voice adapter is installed, and the push-
to-talk button switch is pushed.
10.2.2 Jumper Selections
The following jumper selections are available:
JU1 Allows selection between NORM/
INVERT. Selecting the normal
(NORM) position will turn “ON” the
Transmitter when proper voltage level
(15 V, 48 V, 125 V, 250 V) is applied to
pins A-16/C-22. Selecting the invert
(INV) position will turn “ON” the
Transmitter when voltage is removed
from input pins A-16/C-22.
JU2 Selects between a directional compar-
ison system and a phase comparison
system.
Page 10–2 January 1996
TCF–10B System Manual
Technologies, Inc.