Configuring a Port on an ATS or NAS

When connecting an alert device to an ATS or NAS, or when connecting a modem to a paging service, Operations Sentinel is not directly involved in the establishment and use of the serial communications parameters and the device or paging service. To ensure the ATS or NAS can properly communicate with the device or paging service, you must compare the values defined by the alert device or the paging service for baud rate, character size, parity, and stop bits with the corresponding ATS or NAS port to make sure they match.

Follow these steps to configure a port for a modem used to connect to a paging service:

Log on with the user-id atsna.
You are now in the ATS or NAS Network Administrator.
Select the ATS or NAS with which you want to communicate:
```
ats name
```
where name is the network name given to the ATS or NAS in the hosts file.
Display the current parameters for the selected ATS or NAS:
```
show ats
```
Select the port you want to configure
```
port port
```
where port is the number of the port.
Display the numeric parameters of the selected port:
```
show port
```

Set the port options with the command

set port option setting

where you select the values of option and setting from the following list:

Option	Setting
mode	adaptive
type	hard-wired
max_session_count	1
bidirectional_modem	1

Set the baud rate (speed), data bits, stop bits, and parity to match the characteristics required by the paging service. Typical values are 1200 7BIT 1STOP EVEN.