8-5
Telnet & SSH Functions
4. Raw Socket Direct Connection (with Password):
a) RSM-8:
• Serial Ports: TCP port numbers 3101 through 3108.
• Internal Modem Port: TCP port number 3109.
b) RSM-16 & RSM-16DC:
• Serial Ports: TCP port numbers 3101 through 3116.
• Internal Modem Port: TCP port number 3117.
c) RSM-32 & RSM-32DC:
• Serial Ports: TCP port numbers 3101 through 3132.
• Internal Modem Port: TCP port number 3133.
5. Raw Socket Direct Connection (without Password):
a) RSM-8:
• Serial Ports: TCP port numbers 3301 through 3308.
• Internal Modem Port: TCP port number 3309.
b) RSM-16 & RSM-16DC:
• Serial Ports: TCP port numbers 3301 through 3316.
• Internal Modem Port: TCP port number 3317.
c) RSM-32 & RSM-32DC:
• Serial Ports: TCP port numbers 3301 through 3332.
• Internal Modem Port: TCP port number 3333.
When establishing a Direct Connection, the correct TCP port number must be used. If
conditions are acceptable (e.g. Target Port must be free and properly configured), an
immediate connection will be made, with one possible exception; password entry may
first be required depending on configuration settings.
Note: When a Direct Connect attempt fails because the Port is busy, the call is
rejected at the TCP level.
Connection Example
1. Assume that Port 8 is configured as described in Section 8.3.2 If the RSM’s
IP address is "1.2.3.4", and you wish to establish a standard Telnet protocol
connection with port 8 (TCP Port Number 2108), then on a UNIX system, the
connect command would be invoked as follows:
$ telnet 1.2.3.4 2108 [Enter]
2. The RSM will first send the site ID, Port Number, Port Name, and Telnet Port number,
and then once a connection is established, the "Connected" message will be sent.