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Concept

Concept


Products: AS-P
Functionalities: Hardware
Product version: 1.8, 1.9
6/20/2017

AS-P Screw Terminals

There are 4+3+5 pluggable screw terminals at the top of AS-P.

 
action_zoom_plus_stroke AS-P screw terminals and other connectors
Figure: AS-P screw terminals and other connectors

The following table describes the screw terminals at the top of AS-P.

Table: Top Side Screw Terminals, AS-P

Terminal number

Designation

Usage

COM A

1

TX/RX +

RS-485 communication

2

TX/RX –

RS-485 communication

3

RET

Internally connected to ground

4

Bias +

5.0 VDC, 25 mA output for RS-485 biasing

COM B

5

TX/RX +

RS-485 communication

6

TX/RX –

RS-485 communication

7

RET

Internally connected to ground

LON

8

TX/RX +

RS-485 LonWorks

9

TX/RX –

RS-485 LonWorks

10

RET

Internally connected to ground

11

LON-1

TP/FT-10 Free topology LonWorks network, 78 kbps

12

LON-2

TP/FT-10 Free topology LonWorks network, 78 kbps

The screw terminals 1 to 7, intended for RS-485 communication, act as connectors to AS-P and are easily inserted/removed without disrupting the network. Doing so may help in isolating possible RS-485 communication problems.

See Also

  • Hardware Overview
  • AS-Ps