NCR RealPOS User Manual - Installing The 7893

3-4 

Chapter 3: Installation 

Installing the 7893 

The 7893 can be connected to the host terminal through a PS/2 keyboard connector. Scan data 

is input into the PS/2 keyboard port. When connected in this configuration the 7893 cannot 

receive commands from the host terminal. 

Note:  For the 7893 there is only a single transmit message buffer. Also, the transmission of 

the data can be significantly longer than other communication protocols; the time depends on 

the length of the intercharacter delay. 

Note:   The PS/2 Keyboard Wedge cable connects both the scanner and the keyboard to the 

host terminal through the PS/2 keyboard port. This cable has two PS/2 connectors. If the host 

terminal system has an AT keyboard connector, two adapters are required: an AT to PS/2 and a 

PS/2 to AT. These adapters are available locally at most computer stores. For more 

information about PS/2 Keyboard Wedge, see Appendix A.  

  Belkin F2N017—AT to PS/2 

  Belkin F2N018—PS/2 to AT 

27473

Power

Supply

7893 Scanner

Scanner Cable

AC Power Cord

Host Terminal

Keyboard

Keyboard Wedge Cable 

  1416-C636-0030

Power Cable