Advantech SSPB-3000C, Инструкция по установке и эксплуатации, Страница: 19 / 55

SSBP-3000C
Page 18
4. INTERFACES
The SSPB provides four user interfaces that could be used to connect to several optional external
devices. The interfaces for this model are listed below:
1. Discrete Interface (J3): This interface offers the essential monitoring and control of the
SSPB by discrete signals.
2. RS-232 Interface: This interface offers to the operator the essential monitoring and control of
the SSPB using a personal computer equipped with any terminal software.
3. RS-485 Interface: This interface offers the complete monitoring and control of the SSPB and
provides the communication and remote control through the RS-485 serial communication port
in packet mode.
4.
RF Output Monitor Interface: This interface provides a sample of the output power of the
unit through a 40-dB coupler.
4.1 DISCRETE INTERFACE
The
Discrete Interface is located at connector (J3) on the rear panel of the SSPB (see Figure 5 at
page 24). This connector is a female, 15-pin DB-type with a pin assignment as shown in
TABLE 3 at page 19.
Pins 2, 3 and 4 of connector (J3) are of Form-A relay type outputs that provide the user an
indication informing the status of the SSPB.
Pin 1 of connector (J3) RELAY is the mute control input, allowing the user to mute or un-mute the
RF output of the SSPB.
CAUTION:
If pin 1 is not connected to pin 5, the unit will remain disabled (mute).