Microwave Data Systems MDS entraNET 2400 Especificaciones descargar pdf (Pagina 19)

05-4055A01, Rev. D GE MDS entraNET Reference Manual 9

1.3.4 Upgrading an Older Wireless Network with

Serial Interfaces

Millions of wireless data products have been sold in the last two decades

for licensed and license-free operation, many of them manufactured by

GE MDS. There are several ways that these systems can benefit from

employing GE MDS entraNET wireless equipment, including flexible

serial and Ethernet interfaces, higher data throughput, and ease of instal-

lation.

GE MDS entraNET radios are well suited to replace leased lines, dial-up

lines, or existing data radios by taking advantage of the built-in serial

and Ethernet interfaces on the transceiver. The sections below discuss

two common scenarios.

Replacing Legacy Wireless Products

In most cases, legacy radio transceivers supporting serial interface

equipment can be replaced with GE MDS entraNET radios with little or

no special configuration. This equipment can be connected to GE MDS

entraNET radios through the COM1 or COM2 port with a DB-25 to RJ-45

cable wired for EIA-232 signaling. The COM2 port supports standard

EIA-232 signaling and acts as a data communications equipment (DCE)

device.

NOTE: Several previous GE MDS-brand products contained signal

lines on their interface connectors that are not used or required

on entraNET radios. Consult the equipment manual(s) for

interface pinout information, and connect only the required

pins.

Supplementing a Legacy Wireless Network with IP Services

GE MDS entraNET Remotes support most polled protocols. The serial

interfaces encapsulate serial data in two different modes: connectionless

(User Datagram Protocol, or UDP) and connection-oriented (Transmis-

sion Control Protocol, or TCP).

For complete details on serial gateway interface modes, see “CONFIG-

URING THE SERIAL INTERFACES” on Page 54.

1.3.5 P22 Protected Network (Redundant)

Configuration

For mission-critical applications, GE MDS offers the Protected Net-

work Station. This radio incorporates two entraNET AP transceivers,

two power supplies, and a switchover logic board that automatically

selects between Transceiver A and Transceiver B as the active radio.

Figure 1-4 shows a view of the protected chassis. For system-level

information on this product, see GE MDS publication 05-4161A01.

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