TIL TST-4100 92-SC, Инструкция по установке и эксплуатации

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TECHNISONIC INDUSTRIES LIMITED
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TST-4x00 92-SC Installation & Operating Instructions TiL 93RE126 Rev F
2-12
Control Configuration for 2/4 Wire ± DC/Ground/Tone/
(Current Loop) Keying Control Board
Assembly P/N 923051-1, Layout 929147
05re363
NOTE: Bold Italics
indicate Factory default configurations.
R7:
Tx Audio (
-25 dBm
sensitivity; increases
CW (clockwise).
J1:
Selects DC or
Current Loop
Keying
operation
R10:
2 Wire Rx Balance at 600 Ω (
1mV
RF at 1
kHz, 30% Mod.) R10 adjusted for
minimum amplitude
at C6/R4 junction.
J2:
Selects either Land Line (L/L
)
or
Single
Line (S/L)
and ± DC or
Ground keying
operation
R22:
Keying Tone
(
-30 dBm
sensitivity; decreases CW)
J3:
Selects
Tone
and/or
± DC
Keying enable
or disable
R25:
Rx Audio (
-10 dBm
output level;
increases clockwise)
J6*:
Selects between Internal or
External
Current loop keying (ICL/
ECL
)
R44:
Time Out Timer (15 to 300 sec.;
90 sec.
nominal; increases clockwise)
J4:
Input Connector
SW1:
Selects either
2-Wire
or 4-Wire operation
J5:
Output Connector
SW2*:
Selects either Local or
Land Line
Current Loop Keying
J7:
Keying timer position
CLK IN
/ CLK OUT
NOTE: P/N 923051-1 Rev N and up (Aug 2006) has SW2 and J6 removed.
*The SW2 function is now hard wired in the
landline
current loop keying position and J6 is hard wired for
external
current loop.
CAUTION:
Ensure that the J7 jumper is set to the
CLK IN
position, otherwise damage may occur when
transmitting.
FIGURE 2.3
Line Interface/Remote Control Board P/N 923051-1 (TLI-203)