User Guide

Table Of Contents
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SETUP MODE
1)Comm
Guide to the SRX 600 receiver Rev A #10112 Chapter 3 - - Page 27
Parity: Setup > 1)Comm > 1)Configure > 1)Serial I or 2)Serial II > 2)Parity.
Select to have no parity, odd parity or even parity.
Data Bits: Setup > 1)Comm > 1)Configure > 1)Serial I or 2)Serial II > 3)Data
Bits. Select either 7 or 8 data bits.
Stop Bits: Setup > 1)Comm > 1)Configure > 1)Serial I or 2)Serial II > 4)Stop
Bits. Select either 1 or 2 stop bits.
The receiver also needs to know if serial I is going to be used for connection
with a modem (see Configuring Modem Settings for details).
C ONFIGURING MODEM SETTINGS
The modem must be connected to serial I. Serial I must have the appropriate baud
rate so that it is compatible with the speed of the modem and it is highly
recommended that the port baud rate be set at or below the actual throughput of
the line, to avoid overloading the modem’s internal buffers.
For example, if the modem is capable of communicating with the receiver at
115200 baud, but the actual telephone line speed is on the order of 57600, the serial
I setting should not exceed 57600.
Access modem settings via Setup > 1)Comm > 1)Configure > 1)Serial I >
5)Modem.
There are three actions associated with the modem: assign Serial I to the modem,
view the CMDS for the modem and initialize the modem. Details on these are
provided below.
ASSIGNING A MODEM TO SERIAL I
Assign a serial port via Setup > 1)Comm > 1)Configure > 1)Serial I > 5)Modem >
1)Has Modem. Select Yes or No.
VIEWING THE CMDS
View the CMDS via Setup > 1)Comm > 1)Configure > 1)Serial I > 5)Modem >
ViewCMDS. CMDS stands for Command String and is used to initialize the
modem. The CMDS may need to be viewed if the modem is not working or data
transfer is very slow. If the CMDS parameters are not appropriate for the modem
being used they can be changed using the SRX Host software. To find out what