Dantel A11-44202-00 Manual de instalação e operação - Página 11
Procurar online ou descarregar pdf Manual de instalação e operação para Modem Dantel A11-44202-00. Dantel A11-44202-00 16 páginas. 202 compatible modem
Imprimir página44202-0898 <90-00004>
INSTALLATION
NOTE:
If the transmit level cannot be adjusted, the module is defective
and should be replaced
6.
Action: Connect the TMS, set for bridged reading, or a dB meter, to
the test points labeled RCV and GND. Send the engineered data
level (13dB below tone level) into the 44202 modem from an available
test point. (RCV Line, DST, CXR jack, etc.)
Result: The CD LED lights.
7.
Action: Adjust the RCV GAIN pot to achieve a -20dBm meter
reading.
NOTE:
If the desired level cannot be reached, remove power from the
shelf and unplug the module. Place the RCV GAIN strap in
the HIGH position to add 20dB of gain. Replace the module,
reconnect power, and adjust the RCV GAIN pot for the
desired level.
If the receive gain cannot be adjusted, the module is defective
and should be replaced.
8.
Action: Remove the data level tone. Place the TEST switch in the
OFF position.
9.
This completes the modem alignment.
Analog Loopback Test
1.
Action: Place the ALB (analog loopback) switch and the TEST
switch in the ON position. Connect a TMS with a speaker to the
XMT LINE jack.
Result: You should hear the 1200hz data tone from the modem.
2.
Action: At the distant end, have someone send data to the modem.
Result: You should hear the data they are sending along with the
1200hz tone.
3.
Action: Return the ALB and TEST switches to OFF and remove
the connection to the TMS.
4.
This completes the analog loopback test.
Digital Loopback Test
1.
Action: Place the TEST and DLB switches in the ON (up) posi-
tion.
Result: The RTS, DTR, CTS, and CD LEDs come on.
2.
Action: Configure a terminal or terminal emulator for 1200 baud, 8
bit word length, 1 stop bit, and no parity. Connect the terminal to the
RS-232 port. Type on the terminal.
Result: The TD and RD LEDs flash. The data is looped back and
the typed characters are displayed on the screen.
. . .
CONTINUED
P
11
AGE