Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
2
3
5
3
3
5
Not used 1
Receive Data (RxD) (input) 2
Transmit Data (TxD) (output) 3
Not Used 4
Signal Common 5
Not Used 6
Not Used 7
Not Used 8
Not Used 9
MA-490 DATA PORT CONNECTOR TO COMMON MODULE OR OTHER EXTERNAL EQUIPMENT
Male DB-9 Female DB-9 Female
Cable Assembly
Figure 11. Making connections from the MA-490 Data Port to the CM or other external equipment
COMMUNICATIONS INFORMATION
The serial communications port on the PC or laptop must be configured to match the MA-490 Craft
port as follows:
Data Bits 8
Stop Bits 1
Parity None
Baud Rate 9600 baud
VIEWING APRIL COMMANDS
Once you have connected a PC or laptop to the MA-490 and pressed the [ENTER] key, the MA-490
will send the following prompt to your terminal:
MA-490>
This means that you have accessed the MA-490, and can now use APRIL commands to view lists of
parameter settings and other information.
RFL MA-490 Telnet I/O RFL Electronics Inc.
March 6, 2007 16 (973)
334-3100
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