SMC4: Specifications
| Power Supply | |
|---|---|
| SMC4B Power Requirements: | Auto-ranging 85 – 265 VAC, 50 – 400 Hz, 60W max |
| SMC4C Power Requirements: | 4 – 16 VDC, 20W max |
| Battery Backup (SMC4B): | 12V @ 2.9 Ahr. Typical 4 hours backup operation c/w automatic charger & automatic low battery disconnect |
| Battery Backup (SMC4C): | 12V @ 7.0 Ahr. Typical 6 hours backup operation c/w automatic charger & automatic low battery disconnect |
| Analog Inputs | |
| Analog Inputs: | 9 - differential, NOTE: Channel 10 is reserved for monitoring the backup battery |
| Analog Input Ranges: | 58mV, 5V, 27.5V, 50V full scale, selectable per input |
| 60Hz Noise Averaging: | software selectable per analog input channel |
| Analog Conversion: | 12 bit A/D Converter |
| Interrupter Mode | |
| On/Off Delays: | from 0.1 to 25.5s selectable for each in 0.1s steps |
| Interrupt Duration: | 1 to 200 hours selectable |
| Synchronization: | all interrupters are synced automatically via GPS receiver signals |
| Off Control: | SMCs can be remotely commanded to turn off the rectifier via the interrupter output |
| Output: | current limited +12VDC output to directly drive a low coil current interrupter relay (<0.5A @ 12VDC) or a solid state relay |
| Interrupt Accuracy: | better than ±1ms |
| CSA Aproval | |
| SMC NEMA4 Enclosure: | 202038-2500005472 |
| SMC4B Electronics: | 202038-2500009933 |
| SMC4C Electronics: | 202038-2500009933 |
| Satellite Interface | |
| Interface Signals: | +12V Fused, RS232C Transmit and Receive Data, On/Off |
| Format: | 4800 N-8-1, no handshaking |
| Interface Protocol: | Thrane and Thrane Easytrack Transceiver proprietary
command-based protocol w/ data reporting or IET1 is the translator between the Iridium system and the EasyTrack system used on the SMC4. |
| Radio Interface | |
| Signals: | push-to-talk, carrier sense, transmit/receive audio, +12V regulated, 12V fused, channel data for internal data radio |
| Signaling Format: | 1200/2400bps Minimum Shift Keying, compatible with Mobiltex CMS network data protocols |
| Radio Range: | typically within 30- to 45-mile radius of tower site, directly dependent on repeater system |
| Radio Characteristics | |
| Canadian Approval: | 737 194 221 |
| FCC Approval: | CAST2010-313 |
| Frequency Band: | 136 to 174 MHz |
| Frequency Tolerance: | (-30 to +60°C / -22 to +140°F) ± 3ppm |
| Transmitter RF Power: | 5W (10 to 25W optional) |
| Cabinet Heater | |
| Software programmable range: | -50 to 0°C (default is -20°C) / -58 to 32°F (default is -4°F) |
| SMC4B (AC version): | 12W |
| SMC4C (TEG version): | 5W |
| Local Computer Interface | |
| RS-232C Signals: | transmit data, receive data, clear-to-send, request-to-send |
| Format: | 9600 baud, 8-bits, 1 stop bit, no parity |
