model RS-1/LX
Interface Adapters

The RS-1/L is available in two versions, the RS-1/LX and the RS-1/LY. The -1/LX has several controls and operating modes, including automatic power up and power down. The -1/LX has switch inputs for Record, Stop, Pause, Play, Fast Forward, Rewind, and Power. Intended for camcorder control, the -1L/Y has switch inputs for Record Start/Stop, Zoom Wide, Zoom Tele, and Auto Focus On/Off. The -1L/Y also has status LEDs to tally Record, Record Pause, and Stop.


RS-1/LX Connections (25-pin D male)

LANC cable (L, +V, GND and pins 14, 1, 4)
The LANC cable can be connected to either solder pads on the printed circuit board or at the DB25 male connector. The LANC cable has three conductors: white for LANC Data, red for Power, and a bare copper braid for Ground. The PC board solder pads are marked with L, +V, and GND for LANC Data, Power, and Ground connections. Refer to the interconnect schematic for the DB25 connections.

Power Switch (pin 15)
The power switch has three distinct functions: Power On, Power Off, and On Screen Display on/off. The RS-1/LX can awaken (Power On) a hibernating camcorder or deck by a simple momentary (>150 msec) closure of the power switch. The power switch must be connected between the LANC Data line and the Power Switch connections on the DB25 connector.

To put the camcorder or deck back into low power mode (Power Off), the power switch must be held closed for about 2 seconds. The RS-1/LX will signal that it's ready for power switch release by flashing the Record and Stop LEDs in sequence. Once the power switch is released, a LANC command to power down is sent to the camcorder or deck.

The power switch has one additional function -- the control of the On Screen Display (OSD) feature. A short push of the power switch (less than 2 seconds so as to not cause a power down) will toggle between OSD on and off.

Record Delay (pin 18)
The record delay is used only for the automatic recording modes. In modes A, B, and C, the record delay can keep the camcorder or deck recording should the power switch open briefly for less than 20 seconds. This is designed to accommodate intermittent triggers from sources such as alarms and proximity detectors.

Pause (pin 18)
Pause applies only for the manual operation mode, mode D. A contact closure to ground causes the camcorder or deck to Pause if playing or recording. If the deck is already paused, a contact closure will cause the deck to resume playing or recording.

Mode (b1, b0 on pins 19, 20)
The RS-1/LX supports four different operating modes. Modes A, B, and C are intended for automated recording triggered by alarms, proximity detectors, and remote controls. In mode A (b1 and b0 grounded), a power switch closure initiates a Power On and immediate Record while the switch remains closed. When the power switch is opened, the camcorder or deck is stopped and powered down.

Mode B (b1 grounded) operates in the same manner as mode A but without powering down. This mode provides a faster record response to a trigger by not having to power up each time.

Mode C (b0 grounded) operates in the same manner as mode A but keeps the camcorder or deck in Record Pause mode most of the time when not being triggered. The RS-1/LX will unpause the camcorder or deck every so often to prevent the camcorder or deck from automatically powering down and to protect the tape from excessive wear in one spot.

Mode D (b1 and b0 open) is the manual operation mode, with each function individually initiated by switch closures. Mode D includes the following functions:

Fast Forward (pin 21)
A contact closure to ground causes the camcorder or deck to Fast Forward.

Rewind (pin 22)
A contact closure to ground causes the camcorder or deck to Rewind.

Stop (pin 23)
A contact closure to ground causes the camcorder or deck to Stop.

Play (pin 24)
A contact closure to ground causes the camcorder or deck to Play.

Record (pin 25)
A contact closure to ground causes the camcorder or deck to Record. Once in Record mode, a contact closure to ground causes the camcorder or deck to go into Record Pause. Yet another contact closure to ground causes the camcorder or deck to resume recording. Only a Stop function will exit the Record mode.

LEDs (pins 16, 17)
The Record LED will illuminate whenever the camcorder or deck is in Record or Record Pause modes. The Stop LED will illuminate whenever the camcorder or deck is in Stop, Pause, or Record Pause modes. Both LED pins have current limiting - only a simple LED connected to ground is required.