1220A/26A Auto Switches
The ptf 1220A (1U) and 1226A (2U) Auto Switch is purpose designed for time and frequency applications where reliability criteria call for redundant RF and Pulse sources. Based on the latest advances in semiconductor technology, the unit accepts two input pairs consisting of an RF (sine/square) signal and a pulse (typically 1 PPS). Both primary and backup input pairs are monitored for signal health, and if either the primary RF or pulse signals are determined faulty, the unit automatically switches to the backup channel within < 3msec (typical). In addition to providing for local control from the instrument front panel, the comprehensive communications package provides status reporting and instrument control on both RS232 and Ethernet interfaces with a variety of available protocols. Range setting on the pulse and frequency inputs allows fast detection of RF signals from 20MHz and pulse ranges from 0.1second to 2 seconds, Front panel indicators include RF and fault monitoring on each of the input channels, together with active channel indication and operating mode (auto/manual). The 1226A (2&U) utilizes quad-bloc cards for additonal RF and Pulse outputs (up to 24 total).
ptf 3225A
- Stand Alone Time Server
- NTP support
- Ethernet 10/100 Base T
- 12 Channel GPS Receiver
- Independent time acquisition from GPS
- Ideal for e-Commerce
- 1ms to 10ms Accuracy (typical)
Switching Characteristics
| ELECTRICAL | Front Panel | ||
| Input/Output Connections | Indicators | ||
| 10/100 BaseT Ethernet RJ-45 | Serial RS 232 DB9 (monitor/control) | Fault | Amber LED |
| SOH DOY HH:MM:SS: Space or ? | (? = In holdover, SOH = start of header) | Lock | Green LED |
| 1Pulse Per Second (optional) | 5 V CMOS Level into 50Ω | Power | Green LED |
| Timing Accuracy | GPS Receiver | 12 parallel channels | |
| Network | 1ms to 10ms(typical) | Input | 16 to 26 dBi antenna gain at input |
| from GPS Antenna. | |||
| RS232(portB) | <10ms(typical) | Antenna | 5V supply |
| 1PPS(opt) | 5V TTL | ||
| Control/Monitor Features | ENVIRONMENTAL & PHYSICAL | ||
| Ethernet | NTP (port 123) | Power Requirements | 9V to 36V DC |
| TCP (port 13) | Dimensions (HxWxD) | 1.75″ x 9″ x 7″ | |
| UDP | Operating Temp | 0° to 50° C | |
| Telnet- | Relative Humidity | ||
| Interface (port 23) | (non-condensing) | 0 to 95% | |
| RS 232 | Console interface | ||
For additional specifications, please download the data sheet (under documents tab)
Please select from the documents below:
| Click on the data sheet download button to access the data sheet |
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| Click on the manual download button to access the manual |
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