Operation
Operating Procedures
060R115-000
DataComm V.34 PL Modem
3-9
Issue 1
Installation and Operation
Transmit Level
It is possible in private line operation for the transmit levels of the modems to be either too low or
too high. When that is the case the connection usually will not be dependable and will be filled with
errors. To correct such situations, the transmit level of the DataComm V.34 PL for private line
operation can be configured in 1 dBm increments between 0 dBm and -15 dBm. This selection can
be done from the front panel by entering
tL
then 0 to 15. -9dBm is the default.
Automatic and Manual Handshaking
The modems can be put into private line idle via the front panel
RST
button. From idle, the
RST
button can be used to initiate a new connection. Once told to handshake, the modems will
continuously try to complete a handshake.
When communicating with a different modem in private line operations, the following steps outline
how to configure the modems:
1. Configure both modems for the type of communications they are intended to perform.
2. Configure the DataComm V.34 PL modem as the Originate modem, selecting
FAC0, FAC2
.
3. Again, use the
RST
button to permanently store the current configurations for both modems.
Testing the Modem
Chapter 6 describes basic diagnostics.
Diagnostics
Note
It is recommended that you permanently store the above settings by pressing the
RST
front
panel button. The modems are now ready for private line communications.
Note
When the modem is in synchronous mode, you must press the front panel
RST
button to enter
idle.
Note
You can perform private line "back-to-back" testing with the supplied 8-pin cable, but only in
two-wire mode with the transmit level set to -15 dBm. For back-to-back testing in four-wire
mode, use GDC cable P/N 024H207-XXX.
The DataComm V.34 PL allows you to perform the diagnostics
described below. If you attempt to start a test which cannot be run (e.g.,
End-to-End Self-Test when the local modem is not connected to another
modem), the modem displays nA (not applicable).
Содержание V.34 PL
Страница 1: ...DataComm V 34 PL Modem Installation and Operation 060R115 000 Issue 1 ...
Страница 2: ......
Страница 3: ...060R115 000 Issue 1 DataComm V 34 PL Modem Installation and Operation ...
Страница 10: ......
Страница 16: ...Introduction Equipment List 1 4 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...
Страница 36: ...Operation Operating Procedures 3 12 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...
Страница 46: ...Tests End to End Self Test 4 10 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...
Страница 50: ...Technical Specifications A 4 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...
Страница 55: ......
Страница 56: ......