Appendix B Technical Specifications
B.1 GPS Master Clock
B.1.1 GPS receiver
• 16-channel GPS receiver
• L1 (1575.42 MHz) signal, C/A code
• active antenna, up to 250 m [820 ft] cable length
• -162 dBm tracking sensitivity
• single-satellite operation supported
• 60 ns accuracy (99 %)
• antenna cable open and short-circuit detection
• BNC coaxial connector (female)
B.1.2 Internal oscillator
• digital temperature compensated oscillator (DTCXO)
• 0.1 ppm typical drift
• user-defined out-of-bounds alarm
B.1.3 Power supply
• operating voltages: 18–72 Vdc or 80–300 Vdc / 85–264 Vac (50/60 Hz)
• power consumption: 7 VA max (tīma 2P), 10 VA max (tīma 2R)
B.1.4 Alarm dry contact
• normally closed (opens to signal alarm)
• breaking capacity: 300 mA @ 300 Vdc (resistive load)
B.1.5 Isolated electrical outputs
• 5 V and RS422/RS485 signal levels
• 200 mA drive capability at 5 V level
• up to 50 m [160 ft] cable
• 15 Ω output impedance
• fully-isolated from remaining outputs
• protected against short-circuit and overload
• BNC coaxial connector (for 5 V level signal) and/or 5.08 mm [0.2 inch]
pitch connector (for 5V and RS422/RS485 level signals)
B.1.6 Open collector outputs
• 250 V max load voltage
• 100 mA max load current
• current limit protection
• fully-isolated from remaining outputs
• pin header connector
Содержание tima 2P
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