3
CHAPTER 1: Specifications
1.4 Hardware Characteristics
Internal Memory —
All units: 8 KB battery-backed-up static RAM for
configuration storage;
PI75X models: 1 MB buffer RAM, of which 16 KB
is reserved for use by the system;
PI76X models: 4 MB buffer RAM, of which 16 KB
is reserved for use by the system;
Buffer memory is user-allocatable to parallel or
bidirectional serial ports in 16-KB increments, or
is dynamically allocated by the unit on a first-come,
first-served basis
User Controls —
Software (included);
Front-mounted ON/OFF rocker switch
Indicators —
Front-mounted LEDs:
All models: (1) Power;
PI750, PI754, PI760, PI764 models:
(4) Communication Activity (one for each port);
PI751, PI755, PI761, PI765 models:
(8) Communication Activity (one for each port);
PI752, PI756, PI762, PI766 models:
(12) Communication Activity (one for each port)
Connectors —
(1) Rear-mounted IEC 320 male power inlet;
Rear-mounted DB25:
PI750, PI760 models: (4) female (parallel);
PI751, PI761 models: (8) female (parallel);
PI752, PI762 models: (12) female (parallel);
PI754, PI764 models: (4) male (serial);
PI755, PI765 models: (4) female (parallel), (4) male
(serial);
PI756, PI766 units: (8) female (parallel), (4) male
(serial)
Temperature
Tolerance —
Operating: 32 to 100˚ F (0 to 37.8˚C)
Storage: –40 to 212˚F (–40 to 100˚C)
Humidity
Tolerance —
Up to 90% noncondensing
Содержание PI750A
Страница 119: ...111 APPENDIX A Cable Pinouts IBM AT to MPS VIII DB9M to DB25M...
Страница 173: ...NOTES...