Motorola ACE3600 RTU Owner's Manual page 313

8. Your configuration of the AP is complete. Return to the Starting Information screen
(Step 1 above) and repeat all steps with the remote unit. All of the settings/values are the
same.
Configuring for PPP
9. From the Main Menu, press 'D' and the Serial Gateway Configuration Menu will be
displayed.
10. Press 'D' to enable COM2 (if not enabled). SPACE to cycle between Enabled and
Disabled. COM2 should be Enabled and COM1 Disabled. Press ENTER once Enabled is
shown.
11. Press 'E' and the Serial Configuration Wizard will be displayed. This wizard will assist
you in the configuration of your available Serial Data Ports.
12. Press 'A' to begin the Wizard and the IP Protocol selection menu will appear.
13. Select the IP Protocol you would like to use. The following modes are supported:
 TCP - to be used as a Terminal Server. (IP Gateway does not support this option.)
 UDP - to be used as External Modem.
 PPP - to be used as PPP port (same as Ethernet).
Press 'C' to select PPP.
14. The wizard will prompt you to change the value of the IP Address. Press 'A' and enter
the Remote IP Address. This is the address that is uniquely assigned to the RTU. It
should be different from the other addresses used in the iNET network and in the LAN (if
connected to LAN).
A good scheme is to add 1 to the Static IP Address set in the Network Configuration
screen above. For example, if the address 169.254.0.12 was assigned to the iNET
Ethernet port, the PPP would be assigned 169.254.0.13. Both addresses reside in the
same subnet 255.255.0.0 as was set in the Network Configuration. When using a PPP
port, two IP addresses are set for iNET, one for the Ethernet port, and another (on the
same subnet) for PPP. It is recommended to make those addresses consecutive where
possible.
15. Press 'B' and the Data Baud Rate screen is displayed.
16. Select the baud rate according to the RTU, e.g. 'D' for 9600.
17. Next press 'G' to select the 8N1 hardware configuration.
18. It is recommended to have Hardware Flow Control on the serial port enabled. When
prompted, press 'A' to enable Hardware Flow Control.
19. When prompted to select the Serial Packet Mode, press 'A' to use the default value
(Seamless Mode.)
The settings for the COM2 Serial Data Port should appear as follows:
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