Microwave Data Systems MDS 4310, Установка, эксплуатация и техническое обслуживание на месте

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MDS 05-2415A01, Rev. A INSTALLATION 2-13
Table 2-4. J11–External Interface TTL/RS-232
and Front Panel LED Configuration
LOCATION SHUNTED OPEN
1–2 TTL Enabled RS-232 Converter Enabled*
3–4 Front Panel LEDs Enabled* Front Panel LEDs Disabled
* Standard factory configuration
J14—Receiver Audio Output Phase
The receiver audio output phase can be shifted by 180 degrees (inverted) through the use of a
programmable jumper on the transceiver’s motherboard at J14—Audio Normal/Inverted. The
table below shows the possible positions of the jumpers. See Figure 2-5 for the board
location of the jumper and Figure 2-6 for details. Do not move this jumper from its factory
setting without first consulting MDS Systems Engineering.
Table 2-5. J14 Receiver Audio Output Normal/Inverted
LOCATION SHUNTED
1–2 Normal Audio*
2–3 Inverted Audio
*
Standard factory configuration
1
2
3
J14
Figure 2-6. Detail of Configuration Jumpers—J14
J16—Full Duplex Option Connector
J16 Pins 1–2 and J16 Pins 3–4 must be jumpered for normal remote operation. The Full
Duplex Option Connector is used only when the MDS 4310 is paired with another MDS 4310
transceiver for full duplex operation. Do not move these jumpers from the factory settings
without first consulting MDS Systems Engineering.
MODEMS—GENERAL
Introduction
MDS offers three modem interfaces for the MDS 4310 Data Transceiver operating at
1200, 4800 and 9600 bits per second. Details on each modem are provided in separate
appendices at the end of this manual. Any one model of the modems can be installed in