| Average Time Accuracy (demodulated IRIG-B and pulses) to UTC |
±100 ns |
±40 ns |
| Peak Time Accuracy (demodulated IRIG-B and pulses) to UTC |
±500 ns |
±100 ns |
| Holdover Accuracy Over 24 Hours at a Constant Temperature |
6.9 ms |
36 µs with standard TCXO, 5 µs with OCXO |
| Demodulated IRIG-B Ports |
Up to 6 |
Up to 8 |
| Demodulated IRIG-B BNC Output Voltage and Cable Length |
3.5 V up to 130 feet |
5.0 V up to 500 feet |
| Modulated IRIG-B Ports |
1 |
Up to 4 |
| Ethernet Ports |
0 |
4 (can be copper, single-mode fiber, or multimode fiber, ordered in pairs) |
| NTPv4 |
No |
Yes |
| NTP Time-Stamp Accuracy (typical) to UTC |
— |
<100 µs |
| PTP Grandmaster (IEEE 1588) |
No |
Yes, with PTP option |
| PTP Time-Stamp Accuracy (peak) to UTC |
— |
±100 ns |
| PPS, kPPS |
Yes |
Yes |
| ASCII Outputs |
Yes |
No |
| Time Display |
Yes |
Yes |
| Configurable Cable Delay Compensation |
No |
Yes |
| Power Supplies |
1 standard |
1 standard, 1 optional |
| Management Interface |
Serial |
Web |
| Syslog |
No |
Yes |
| Role-Based Accounts, LDAP Support |
No |
Yes |
| SNMP Traps |
No |
Yes |
| acSELerator QuickSet SEL-5030 Software Support |
No |
Yes |
| Operating Temperature |
–40° to +80°C (–40° to +176°F) |
–40° to +85°C (–40° to +185°F) |
| Time Source |
GPS |
GPS and GLONASS |
| Recommended Antenna |
SEL-9524A |
SEL-9524B |
| Antenna Cable Length |
Up to 400 feet |
Up to 500 feet |
| Satellite Signal Verification |
No |
Yes, with SEL-9524B GNSS antenna kit |
| IEC 60255, IEC 61000, IEEE C37.90 |
Yes |
Yes |
| Output Drive Levels |
3.5 Vdc |
5.0 Vdc |
| IRIG-B Over Fiber |
Use optional fiber-optic serial port |
Use SEL-2812 with DB-9 port |
| Alarm Contact |
Yes |
Yes |
