MDS entraNET 2400, Инструкция по установке и эксплуатации, Страница: 129 / 208

MDS 05-4055A01, Rev. C MDS entraNET System Guide 121
5.1 INTRODUCTION
This chapter provides details of how radios should be configured and
connected for specific applications, such as IP-to-serial and
serial-to-serial configurations. Only the most relevant parameters are
shown for the sake of simplicity. All other parameters are assumed to be
set at their default values.
5.1.1 IP-to-Local Serial Application Example
You may use either UDP or TCP to establish communications with the
entraNET radio. The choice depends on the type of device you are com-
municating with at the other end of the IP network. This example uses
TCP to illustrate this function.
In TCP mode, the transceiver remains in a passive state, offering a
socket for connection. When a request is received, data received by the
AP serial port is sent out through the IP socket and vice versa, until the
connection is closed or the link is interrupted. The TCP session has a
10-minute time-out. If inactive for that time, it ends the session. The
transceiver offers the port for connection again after this time.
See
Figure 5-1 and Table 5-1 .
Establishing a
Connection
From the PC, establish a TCP connection to the IP address of the
Remote transceiver and to the IP port as configured earlier (typically
30011). A Telnet client application can be used to establish this connec-
tion. Data can now be sent between the PC and the endpoint device.
Figure 5-1. IP-to-Local Serial Application Diagram
Ethernet
Cable*
RTU
EIA-232
*Use crossover cable for computer; straight-through cable for network
Computer or Network
192.168.0.10
L
A N
C O M
1
C O M
2
P W R
LI NK
Access Point
192.168.0.1