Overview
The Contemporary Research 232-MTA is a versatile RS-232 controlled monaural TV tuner featuring high-quality
mono audio, 125-channel access in Off-Air, Cable, HRC, or IRC modes, front-panel operation and feedback, and
intelligent control. Fully programmable, the unit can restore all settings on power-up from non-volatile memory.
A list of accessible channels, called channel rings, can be stored in memory, used for convenient channel
up/down control and to control direct access to unlisted channels.
The front-panel buttons and alphanumeric display can be used for general operation and to program basic
features for tuning, RS-232 baud rate and local control. Full setup, control, and feedback is provided by RS-232.
Up to nine
232-series tuners can be controlled
from a single RS-232 port. In addition, remote tuning ring channel
up and down operation can be accessed through contact closure inputs.
•
Interacts with PCs and control systems via RS-232, using simple ASCII-format commands and feedback,
up to nine tuners can be linked to a single RS-232 control port
•
Tunes
125 channels in off-air, CATV, HRC, or IRC modes
, using true synchronous video detection and
intercarrier SAW filter
•
Stores programmable tuning ring in memory to control channel access
•
Provides front-panel control for A/V Mute, mode select, and channel up/down,
with LED feedback
for Mute, current channel and programming mode
•
Accesses tuning ring channel up/down from contact closure inputs
•
Restores all operation status after loss of power from data stored in non-volatile memory
•
Mutes both audio and video with front-panel LED indicator
•
Delivers mono unbalanced audio at fixed volume and mute levels
•
Enables and disables front-panel control via RS-232
•
Mounts in 19" rack with optional RK1 or RK2 kit for dual side-by-side installation
•
Firmware updateable via modem or PC software (available soon)
New Features (Rev 3.3-4.0)
•
Shares new processor from 232-STS S-Video Stereo Tuner
•
Adds new front-panel (12-14) and RS-232 programming modes (Q2-Q4) to match 232-STS
•
Upgradeable firmware, presently updated via modem from factory, software tools available soon for
local update
•
Units shipped with new processor start with serial number 229-5017-001, Rev 3.4 or higher
Serial number can be read as follows—xxx (production run) - 5017 (232-MTA) – xxx (unit number)
•
Request Tune Ring and Channel Label (V3.4)
•
IC-RC Remote emulation (V3.4)
•
Up to nine units can be controlled from a single RS-232 control port, up to 19.2 Kb (V 3.5)
•
Sending a command to Unit#0 (Zero) acts as a global command to all tuners (V4.0)
Contemporary Research
3
2
32-MTA Mono TV Tuner
