Black Box A/S-4 manual Terminal Switches, Clear-To-Send, Carrier Detect

CHAPTER 4: Switches

4. Switches

The A/S-4 is equipped with 8 banks of DIP switches, all of which are accessed from the bottom of the unit. The general functions of these switches are as follows:

NOTE

When any switches are changed, the A/S-4 must be powered off and on for the new switch settings to take effect.

4.1 Terminal Switches

Terminal port switches for Female DB25 Terminal Connector

Switch Bank S2, Switch:

1-On connects pin 4 of connector to A/S-4’s input of

CLEAR-TO-SEND

2-On connects pin 5 of connector to A/S-4’s input of CLEAR-TO-SEND, for attaching DCE device

3-On connects pin 11 of connector A/S-4’s input of CLEAR-TO-SEND, for printers with busy on pin 11

4-On connects pin 19 of connector to A/S-4’s input of CLEAR-TO-SEND, for printers with busy on pin 19

5-On connects pin 20 of connector to A/S-4’s input of CLEAR-TO-SEND, for devices with busy on pin 20

6-On connects pin 6 of connector to A/S-4’s input of

CARRIER DETECT

7-On connects pin 8 of connector to A/S-4’s input of

CARRIER DETECT

8-On connects pin 15 of connector to A/S-4’s input of TRANSMIT CLOCK for Synchronous operation

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