The ADC-A12C31 is a precision analog clock containing a stepper motor drive and advanced, microprocessor-controlled electronics to provide an accurate delivery of time. The clock is designed with a powder-coated steel case for wall-mount applications (mounting bracket supplied). The ADC-A12C31 supports LTC using SMPTE timecode. The LTC will be decoded by the ADC-A12C31 using the full date information in the user bits as defined in ST 12 and ST 309. Clear labeling and an internal, LED-lit face make this clock readable from long distances. Standard power connection and BNC connection for the LTC are provided.
Specifications and designs are subject to change without notice.
| Input (timecode) | |
| Type | Longitudinal/Linear, forward running |
| Formats | SMPTE 24 (Film), 25 (EBU) or 30 f/s non-drop frame
IRIG-B (1) 1 kHz amplitude modulated, 3:1 modulation ratio IRIG-B (0) dc offset/level shifted/unmodulated/pulse width modulated/TTL level |
| Nominal Level | 1.5 V pk-pk (0 dB/600) |
| Level Range | 0.175 to 12 V pk-pk (-15 to 20 dBV) |
| Impedance | >100 k ohms |
| Connector | BNC female, single-ended, unbalanced
Center Pin: Timecode In Outer Conductor: Timecode Return |
| Communications – I/O | |
| USB | B type connect |
| Format | v1.1 |
| Power Requirements | |
| AC Input Voltage | 90 to 265 VAC |
| AC Input Frequency | 47 to 63 Hz |
| Power Consumption | <7.5 W |
| Input Connector | IEC |
| Power cord | North American
Power cord options available for UK, Europe, and Australia |
| Internal Battery Circuit Rechargeable 17 mAh Manganese Lithium coin cell (Panasonic ML1220) and recharging circuit require no maintenance and retain TCXO and RTC (real-time clock) for two weeks (minimum holdover) without applied external power.
| |
| Physical | 12.5 in. (31.8 cm) round, black metal case with 12 in. face, 4.25 in. (10.8 cm) depth, polycarbonate lens |
| Weight | 7.6 lbs (3.45 kg) |
| Operating/Storage Temperature and Humidity | |
| Operating Temperature | 0 to 60° C |
| Relative Humidity | Up to 90% (non-condensing @ 25° C) |
| Storage Temperature | -40 to 85° C |
| Relative Humidity | Up to 90% (non-condensing @ 25° C) |
| ADC-A12C31 | Analog clock, 12-in. diameter |
| EPC | European power cord |
| EPC-UK | United Kingdom power cord |
| EPC-AA | Australian power cord |