User's Manual

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Overall %
Shows the percentage of Host received packets versus Host transmitted packets
# of Packets to Send
A programmable number to tell the Host how many data packets to send to the Remote. After the programmed
number of data packets are sent, the transmission will automatically stop
Bytes of Data/Packet
A programmable number to tell the Host the number of data bytes to send in each packet. The Remote will
respond with the same number of data bytes received
COM Port/ Network Radio
The ratio of COM Port baud rate to network (over-the-air) baud rate of the modem. This is used if the network
baud rate is slower than the COM Port baud rate. If the COM Port baud rate is 9600 and the network baud rate is
4800, set the ratio to 2. If the COM Port baud rate and the Network Baud Rate are the same, set the Ratio to 1
Packet Delay (s)
Tells the Host the number of seconds to delay between sending each data packet (range is from 0.00 to 10.00
seconds in 0.25 second intervals)
Host/Remote
Allows the user to choose the COM Port configuration
o Host (Primary Port) - Configure the Primary COM Port as the Host device (the device initiating packets to
the Remote device).
o Remote (Primary Port) - Configure the Primary COM Port as the Remote device (the device responding to
the packets from the Host device.
o Host/Remote (1 computer / 2 ports) - Configure the Primary COM Port as the Host device and the
Secondary COM Port as the Remote device. A computer with 2 COM Ports is required for this option.
o Host/Remote (1 Port using a Y-cable) - A computer with 1 COM Port is typical for this option (See Table 8).
Configure the Primary COM Port as the Host and Remote device. A Y-cable is required for this option
(where Tx connections are split out to the transmitting device and the Rx connections are split out to the
receiving device).
Table 8: Y-Cable Connections
Pin Name
DB-9
DB-25
Computer
Rx
Tx
DCD
1
8
X
X
-
RxD
2
3
X
X
-
TxD
3
2
X
-
X
DTR
4
20
-
-
-
GND
5
7
X
X
X
DSR
6
6
-
-
-
RTS
7
4
X
-
X
CTS
8
5
X
-
X
RI
9
22
-
-
-