Hall-research VS-20 Bedienungsanleitung PDF herunterladen (Seite 3)

Specifications for the Model VS-20

Equipment included:

• The VS-20 chassis

• UL approved 110 Vac power cord

• Control Keypad

• User’s Manual

Dimensions:

Page 3 of 4

12/01/05

L x W x H: 16.7” L x 9.58” W x 3.2” H (with 19” x 3.44” front panel)

Weight:

Base unit: 5 lbs, Keypad: 1 lbs

Video Specs

Connector HDD15 female

Coupling DC

Bandwidth Over 250 MHz

Video Level 0.7 v p-p

Video Gain 1

Optional Equipment:

LED Display Model HRED-202 Large LED Display Device

DIMENSIONS: Display: 2.25" D x 12" W x 4" H

WEIGHT: 4.5 Lbs

Keypad Codes and RS-232 Protocol (Control from a PC Serial Port)

The Keypad that is shipped with the unit operates at 1200 Baud rate with one start bit (0) and one or more stop

bits (1), no parity. To tie the unit to a PC, use a DB9 F/F cross-over cable (Null Modem: 2<>3, 4<>6, 7<>8,

5=5).

Each key when pressed transmits a unique one byte “make code”, and when released a unique one byte “break

code”. Therefore, to simulate a keypad keystroke from a PC you must transmit a make code followed by a break

code.

Below are the keys that are decoded by the VS-20:

Keypad Button Make Code, ASCII

(HEX)

Break Code, ASCII

(HEX)

1 ` (60) @ (40)

2 a (61) A (41)

3 b (62) B (42)

4 c (63) C (43)

0 o (6F) O (4F)

+ m (6D) M (4D)

- l (6C) L (4C)

Enter t (74) T (54)

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Hall-research VS-20 Bedienungsanleitung Seite 3