Direct Line:
Bench Scales Balance Scales Price Computing Scales Floor Scales Onboard Mining Scales Drum Scales Cardinal-Detecto Washdown Scales
Crane Scales Platform Scales Laboratory Scales Forklift Scales Onboard Scales Logging Scales Doran Scales Wireless Scales
Batching Scales Stainless Steel Scales Washdown Bench Scales Mechanical Scales Truck Axle Scales Skidsteer Scales Intercomp Scales Weigh in Motion Scales
Control Systems Shipping Scales Load Cells & Printers Medical Scales Small Plane Scales Wheel Loader Scales Precisa Scales Wheel Weigher Scales
Intrinsically Safe Stainless Steel Scales Refuse Trucks Scales Tipping Body Scales Dump Trucks Scales Livestock Scales Roll-off Truck Scales
Standard RS-232 Wiring Procedure


Standard RS-232 wiring
Pin No. Description Function
1 Data Carrier Detect (DCD) DTE input, data link established, also known as Receive Line Signal Detect (RLSD)
2 Received Data (RD) DTE input data
3 Transmitted Data (TD) DTE output data
4 Data Terminal Ready (DTR) DTE output, device ready
5 Ground provides a Zero reference voltage
6 Data Set Ready (DSR) DTE input, DCE is ready to communicate
7 Request to Send (RTS) DTE output, DTE would like to transmit
8 Clear to Send (CTS) DTE input, DCE is ready to transmit
9 Ringing Indicator (RI) DTE input, announces incoming call
What is DTE and DCE ?

Data Terminal Equipment (DTE) is typically either a dumb terminal or the serial port on a computer/workstation.
Data Communications Equipment (DCE) is typically a modem, DSU/CSU, or other piece of data communications equipment.

How connections are established between a DTE and DCE ?

The pin specifications of RS232 are written from the perspective of DTE end of link. so, the output from DTE becomes a input to DCE. Thus, Transmitted Data (TD) is a output signal for DTE, but it becomes a input signal for a DCE.
To connect a DTE and DCE, we just need a straight (pin-to-pin) cable. If we want to connect two DTE with each other then, a cross-over cable is required. this just makes each DTE feel that it is connected to a DCE at other end.





Product Menu
Direct Line - 1-330-476-2422
We record all calls for quality assurance.
CopyRight © All Rights Reserved
No Customer Data Stored on our Servers
Installable Systems/Parts/Made or Configured to order: Are NON-Refundable
Debit Cards, Visa, Mastercard, Amex & JCB
Celebrating 30 years of Service in the Scale Industry.