Advantech SSPB-3000C Especificações descarregar pdf (Página 21)

SSBP-3000C

Page 20

4.3 RS-485 INTERFACE

This serial communication interface provides for the user, access to all of the monitor and control

functions for the SSPB.

The RS-485 interface in a redundant system must be connected to the NMS. The NMS will have

access to both units.

The RS-485 interface is located at connector (RS485) on the rear panel of the SSPB. The

mounting connector is a female, 9-pin DB-type with a pin assignment as shown in TABLE 5.

If this interface is being used, an interconnecting cable with the proper mating connector must be

fabricated. TABLE 6 at page 23 provides the correct type of mating connector for the interface.

TABLE 5: RS-485 SERIAL INTERFACE (J12) RS485 – PIN ASSIGNMENTS

Pin # Name Type Active condition

1,2,7,8 - Not used -

3 RX- Serial port (input return) Serial receive RX-

4 TX- Serial port (output return) Serial transmit TX-

5 Common Serial port (common) System common

6 TX+ Serial port (output) Serial transmit TX+

9 RX+ Serial port (input) Serial receive RX+

4.4 RF OUTPUT MONITOR INTERFACE

This RF output sample port is located at the (OUTPUT MONITOR) connector, which is mounted

on the front panel of the SSPB (see Figure 5 at page 24). This interface is used for the

independent monitoring of the SSPB output signal.

4.5 REDUNDANT INTERFACE

The Redundant Interface connections are made with a female 15-pin DB-type connector (J6-1)

and a female 9-pin DB-type connector (J6-2) of each SSPB.

For a standalone unit, this interface is not used. The interconnections for a 1:1 redundant system

are shown in Figure 4 at page 21.

Note that in a redundant system, the Monitor and Control and the Display on the Front Panel of a

unit are supplied with DC power from both its own power supply and the second unit power

supply. So the Display on the Front Panel is on (and the buttons are active), even if the unit is

powered off (as long as the second unit is powered).

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Advantech SSPB-3000C Especificações Página 21