VT102 User Guide| Chapter 10 | +Contents | +Appendix B | +
This appendix lists the specifications of the VT102 terminal. Also included +are X-ray emission statements, loopback connector wiring and related +documentation not provided by DIGITAL.
+| Dimensions | +|
|---|---|
| Monitor | ++ |
| Height | +36.83 cm (14.5 in) | +
| Width | +45.72 cm (18 in) | +
| Depth | +36.20 cm (14.25 in) | +
| Keyboard | ++ |
| Height | +8.89 cm (3.5 in) | +
| Width | +45.72 cm (18 in) | +
| Depth | +20.32 cm (8 in) | +
| Minimum table depth | +51.4 cm (20.25 in) | +
| Weight | +|
| Operating | +Temperature: 10° C to 40° C (50° F to 104° F) +Relative humidity: 10% to 90% +Maximum wet bulb: 28° C (82° F) +Minimum dew point: 2° C (36° F) +Altitude: 2.4 km (8000 ft) |
+
| Nonoperating | +Temperature: -40° C to 66° C (-40° F to 151° F) +Relative humidity: 0% to 95% +Altitude: 9.1 km (30,000 ft) |
+
| Power | +|
| Line voltage | +99 to 128 Vac (115 V setting) +198 to 256 Vac (230 V setting) +87 to 107 Vac (100 V setting) +222 to 268 Vac (250 V setting) +Single phase, grounded, 3-wire |
+
| Line frequency | +47 to 63 Hz | +
| Current | +0.70 Arms maximum at 115 Vrms +0.40 Arms maximum at 220-240 Vrms |
+
| Input power | +70 Wrms or 85 VA apparent | +
| Current limiting | +1.25 A fuse (120 Vac) +0.75 A slow blow fuse (220-240 Vac) |
+
| Power cord | +Detachable, 3-conductor grounded | +
| Power cord receptacle | +EIA specified CEE22-6A | +
| Display | +|
| CRT | +12-inch diagonal measure, P4 phosphor | +
| Format | +24 lines × 80 characters or 24 lines × 132 characters (selected from keyboard or computer) | +
| Character | +7 × 10 dot matrix with descenders | +
| Character size | +3.35 mm × 2.0 mm (0.132 in × 0.078 in) in 80-column mode +3.35 mm × 1.3 mm (0.132 in × 0.051 in) in 132-column mode |
+
| Active display size | +203 mm × 127 mm (8 in × 5 in) | +
| Character set | +ASCII and UK displays 94 characters (with upper- and lowercase, numeric and punctuation), 32-character special graphics set | +
| Cursor type | +Blinking block character or blinking underline (selected from keyboard) | +
| Keyboard | +|
| General | +83-key detachable unit with 1.9 m (6 ft) coiled cord attached | +
| Key layout | +65-key arrangement and sculpturing similar to standard typewriter keyboard with an 18-key numeric keypad | +
| Numeric keypad | +18-key numeric pad with period, comma, minus, enter, and four general-purpose function keys | +
| Visual indicators | +Seven indicators: ON LINE, OFF LINE, KBD LOCKED, CTS, DSR, INSERT and one programmable indicator. | +
| Audible signals | ++ |
| Keyclick | +Provides audible feedback for each keystroke (selected from keyboard) | +
| Bell | +
|
+
| Multiple bell | +Sounds on error in SET-UP store or recall operation | +
| Modem Communication | +|
| Type | +Full-duplex with/without modem control, asymmetric full-duplex, half-duplex +supervisory and half-duplex with coded control | +
| Speeds | +50, 75, 110 (two stop bits), 134.5, 150, 200, 300, 600, 1200, 1800, 2000, 2400, +3600, 4800, 9600, 19,200 baud (selected from keyboard) | +
| Code | +ASCII (ISO 646 and CCITT Alphabet 5) | +
| Character format | +Asynchronous | +
| Character size | +7 or 8 bits (selected from keyboard) | +
| Parity | +Even, odd, mark, space or no space (selected from keyboard) | +
| Buffer overflow prevention | +Automatic generation of XON and XOFF control codes (selected from keyboard) | +
| Echo | +Local echo available (selected from keyboard) | +
| Printer Communication | +|
| Type | +Full-duplex | +
| Speeds | +50, 75, 110 (two stop bits), 134.5, 150, 200, 300, 600, 1200, 1800, +2000, 2400, 3600, 4800, 9600, +19,200 (one stop bits) baud (selected from keyboard) | +
| Code | +ASCII (ISO 646 and CCITT Alphabet 5) | +
| Character format | +Asynchronous | +
| Character size | +7 or 8 bits (selected from keyboard) | +
| Parity | +Even, odd, mark, space or no space (selected from keyboard) | +
| Buffer overflow prevention | +Automatic generation of XON and XOFF control codes | +
Composite Video Output (J9)
+The composite video output provides RS170 output with the following
+nominal characteristics. See Figure A-1.
| Output impedance | += | +75 ohms, dc-coupled | +
| Sync level | += | +0 V | +
| Black level | += | +approximately 0.3 V with 75-ohm load | +
| White level | += | +approximately 1.0 V with 75-ohm load | +
The composite sync waveform meets EIA RS170 standards.
+The vertical interval is six equalizing pulses, six vertical sync pulses, and +six more equalizing pulses. The timing is as follows.
+| Equalizing pulse width | += | +2.3 µs ± 50 ns | +
| Vertical pulse width | += | +27.28 µs ± 200 ns | +
| Horizontal pulse width | += | +4.71 µs ± 50 ns | +
| Horizontal blank width | += | +11.84 µs ± 50 ns, 80 column mode | +
| = | +12.34 µs ± 50 ns, 132 column mode | +|
| Front porch | += | +1.54 µs ± 50 ns | +
FCC Notice
+This equipment generates and uses radio frequency energy. It has been +type tested and found to comply with the limits for a Class B computing +device in accordance with the specifications in Subset J of part 15 of FCC +rules, which are designed to provide reasonable protection against radio +and television interference in a residential installation. However, there is +no guarantee that interference will not occur in a particular installation. If +this equipment does cause interference to radio or television reception, +the user is encouraged to try to correct the interference.
+VDE Notice
+RFI-suppressed according to German regulation 529/1970 and +227/1976 (VDE 0871 Class B).
+| X-Ray Emission Data | +|
|---|---|
| Rated anode voltage | +12 kV (fixed) | +
| Dose rate | +Less than 1.43 pA/kg (20 uR/h)* +* Measured at a distance of 5 cm at any accessible point from the outer surface. |
+
Compliance with
+
|
+
|
+
| Workstation exposure | +Does not expose operator to dangerous X-ray radiation. | +
Loopback Connector Wiring
+| + | From | +To | +
| EIA | +Pin 2 | +Pins 3 and 15 | +
| Pin 4 | +Pins 5 and 8 | +|
| Pin 20 | +Pins 6 and 22 | +|
| Pin 19 | +Pins 12 and 17 | +|
| 20 mA | +Pin 1 | +Pin 3 | +
| Pin 2 | +Pin 7 | +|
| Pin 5 | +Pin 8 | +
Related Documentation
+