Honeywell MS2421, MS2422, MS2431 manual 56

Scale Ready MS2421/MS2431 Models – Additional Pinout Connections

There are four additional 10-pin modular jacks located on the bottom of the of the MS2421/MS2431 scanner models that may be used for an integrated scale application and the use of a remote display.

Note: Please keep in mind that every application is unique. The use of these connections depends on the specifications of the scale’s manufacturer. The following pinouts are for reference only. If the scanner has been integrated with a scale, refer to the Scale Addendum for detailed instructions on the appropriate cable connections, communication specifications and calibration procedures required by the scale manufacturer and local Weights and Measures authorities. When connecting any combination of scale/external scale display to the MS2421/MS2431 do not exceed the following current restrictions: 12V @ 0.7A max. / 5V @ 0.2A max.

			Figure 40. Scale Ready Connector Layout
Scale Display
Data In Scale			Scale Data In		Scale RS232 to Host
Data to Display		RS232 from the Load		Scale Data, Dual Cable		Scale to Display
from the Load			Cell Interface		Applications
Cell Interface
Pin	Function **	Pin	Function**	Pin	Function**	Pin	Function**
1	SIG1	1	12V	1	Ground	1	SIG1
2	SIG2	2	Ground	2	Scale RS232 TX Out	2	SIG2
3	SIG3	3	5V	3	Scale RS232 RX In	3	SIG3
4	SIG4	4	Ground	4	Scale RS232 RTS Out	4	SIG4
5	SIG5	5	RS232 TX In	5	Scale RS232 CTS In	5	SIG5
6	SIG6	6	RS232 RX Out	6	No Connect	6	SIG6
7	SIG7 ††	7	RS232 CTS In	7	No Connect	7	SIG7 ††
8	SIG8 ††	8	RS232 RTS Out	8	No Connect	8	SIG8 ††
9	SIG9 ††	9	Scale Status, TTL	9	No Connect	9	SIG9 ††
10	SIG10 ††	10	Scale Zero, TTL	10	Shield	10	SIG10 ††

**All signals are referenced from the MS2421/MS2431 scanner.

††The use of these pins depends upon the specifications of the scale’s manufacturer. Specifications are subject to change without notice.

52