NCR 5932, Руководство пользователя

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1-4 Chapter 1: General Overview
MSR
The MSR is an optional feature that provides support for reading
magnetically coded data cards. The keyboards support two different
types of MSR:
•
ISO Tracks 1, 2, and 3
•
JIS-II and ISO Track 2
The MSR head is connected to the MSR Amplifier Assembly via the
MSR connector. The MSR Amplifier Assembly contains the
amplification circuitry, a PCB, cable, and connectors.
The MSR Amplifier Assembly is connected to the main PCB and
mounted internally into the keyboard housing by the supplier on every
unit. The intent is that when it becomes economically reasonable the
MSR Amplifier Assembly (with modification) would be added the to
MSR read head assembly kit and installed by the assemblers only when
the customer requested the MSR option.
Keyboard Status LEDs
The keyboard has three status LED’s:
•
Num Lock
•
Caps Lock
•
Scroll Lock
These features are used to provide the present state of the keyboard.
The indicators are single color (Green) LED’s. When the system is off,
no LED’s are illuminated.