5DIN-191 & DIN-192 USERS MANUAL
The DIN-191 female RS-232 connector utilizes five connections:
Transmit | pin 2 |
Receive | pin 3. |
Ground | pin 5. |
Data Set Ready (DSR) | pin 6 |
Clear To Send (CTS) | pin 8 |
Both the Data Set Ready (DSR) input pin #6 and Clear To Send (CTS) input pin #8 are internally biased to their active state thru a 330Ω resistor to +5Vdc.
To easily connect to any host PC computer, a straight thru RS-232 cable can be used. The RS-232 input Ground and signals are isolated by up to 500VRMS from the power supply ground. Cable CA-1 is a male-to-male DB-9 communications cable available for purchase from us.
Figure 1A Connections for DIN-191.
An RS-485 repeater is necessary to extend the length of an RS-485 network, or connect more than 32 RS-485 devices on an RS-485 network.
The DIN-192 repeater contains a seven-pin screw terminal plug. The pin designations are located on the label of each module. The screw terminals will accept up to #14 gauge wire (AWG). This connector is used for +5.0Vdc regulated power supply input and both pairs of RS-485 data lines. The isolated RS-485 input data lines are clearly marked and their ground reference is isolated by up to 500VRMS from the power supply ground. The isolated RS-485 input data lines should be attached to the end of an existing RS-485 network. The serial data received on the
