NCR 7872 Series - Good Read Tone

3-2 Chapter 3 Programming
IBM HHBCR
6 Beeps
RS-232
7 Beeps
OCIA Single-Cable
8 Beeps
OCIA Dual-Cable
11 Beeps
Casio 4-Bit Parallel Dual Cable
12 Beeps
IBM 1520 (BCR)
13 Beeps
TEC 4-Bit Parallel Dual Cable
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