ApexEgroup LLC
Direct Line:
1-330-476-2422
Quotes@ApexScales.com
Bench Scales Balance Scales Price Computing Scales Floor Scales Dump Trucks Scales Drum Scales PNT Scales Washdown Scales
Crane Scales Platform Scales Laboratory Scales Refuse Trucks Scale 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 Tipping Body 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
ApexScales.com
ApexEgroup LLC Direct Line - 1-330-476-2422
We record all calls for quality assurance.
CopyRight © 1986  - Present Date
No Customer Data Stored on our Servers
Prices subject to change without notice.
 
International: ApexEgroupLLC@gmail.com
 USA: Quotes@ApexScales.com
Celebrating 35 years of Service in the Scale Industry.
Note: Because the nature of our business our products are in-line with the manufacturer's policies and are non-refundable. Scales, Installable Systems, Electronic Parts, Made to order, Configured systems are non-refundable.

Due to price increases in material/freight costs, All our Suppliers unfortunately had to increase pricing.