The Telex DSP-223 provides a reliable means of remotely controlling two-way radio base stations. The adapter can be used in conjunction with all radio dispatch consoles, or other manufacturers’ (such as Motorola and GE) remote consoles that use the industry-standard sequential tone-keying format. The DSP-223 is interconnected to the distant remote control console(s) by any voice-grade transmission medium, such as a microwave link, leased telephone line, or a twisted pair 600-ohm line. All DSP-223s are capable of decoding the PTT (push-to-talk/transmitter-on) tone sequence and the voice-plus-tone signals during transmission. All models are prepared for jumper plug conversion from two-wire line operation to four-wire line operation. In the four-wire mode, the panels are full-duplex capable.
- PTT Relay
- Monitor Relay
- 99-digit display
- PTT, Monitor, and Power LED indications
- F1 and F2 Relays (programmable to any function tone or Revert to F1)
- 6 digital outputs for channel selection, completely programmable per function tone
- CTCSS generation (64 frequencies)
- Hardware and software gain control
- Local handset port for monitoring activity and transmission back to base or to radio
- Front panel test points and level set potentiometers
- RS-232C port on front panel for configuration via Windows application
- Two PTT modes and three monitor modes
- Eight selectable PTT frequencies
- Ability to pass-through to a second tone adapter with 400ms built in delay line
- Relays can be placed in any of four groups for separation of function
- Single Function tone recognition (16 function tones)
- Dual function tone recognition (100 function tones)
- Morse Code Encoder for Automatic station identification
- Automatic Gain Control
- Function Tone lock-out
- RX Audio Squelch
- Voter Status Tone
- Alarm Beeps
- Pre-Emphasis
- 3.5kHz Low Pass Filter