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

Страница: 25 / 48

TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TST-4x00 92-SC Installation & Operating Instructions TiL 93RE126 Rev F
2-11
2.4.2 Two Wire Line Interface Board P/N 943180-1
Provides remote control Transmitter operation on 2 wire 600 ohm lines. Two wire Line Interface
board with EIA multi-tone, standard 2175 Hz continuous tone, DC keying of ground keying over
audio lines. The multi-tone keying format consists of a high level 2175 tone followed by a 1950 Hz
guard tone and then a low level 2175 Hz continuous tone is utilized to key the transceiver. This
board will also support 15mA current loop or ground keying. Refer to Figure 2.4 for jumper
locations to set functions and line level adjustments for this board. Summary of jumper settings
follow. Pins are numbers increase as you go from top to bottom or left to right on the connector.
Set
J1
for
ST
(standard 2175Hz continuous) Tone keying or
for EIA (multi-tone keying format).
Set
J2
for Tone keying function
ON
(left jumper position) or
OFF
(right jumper position).
Set
J3
for Time out timer
OFF
(left jumper position) or
ON
(right jumper position).
See Figure 2.4 for location of jumpers and left/right orientation.
TABLE 2.5
REMOTE CONTROL BOARD P/N 943180-1 SETTINGS
CONTROL FUNCTION
J1
Jumper Pin 1 and Pin 2 for ST (standard 2175 Hz continuous) tone Keying
Jumper Pin 2 and Pin 3 for EIA multi-tone Keying.
J2
Jumper Pin 1 and Pin 2 for Tone Keying.
Jumper Pin 4 and Pin 5 for Current Loop (15mA DC) or Ground Keying.
NOTE: Both options may be selected
Jumper Pin 2 and Pin 3 to disable Tone Keying.
Jumper Pin 5 and Pin 6 to disable Current Loop and Ground Keying.
J3
Jumper Pin 1 and Pin 2 to enable Timeout Timer.
Jumper Pin 2 and Pin 3 to disable Timeout Timer.
R6
R24
R26
R41
R59
R64
Tx audio level Adjustment
Keying Tone Attenuator
1950 Tone level Adjustment
2175 Tone Level Adjustment
Sets Rx Audio Level Adjustment (Range -15 dBm to +10 dBm).
Sets Timeout Timer (Range 30 to 300 Seconds)