Spectracom TPRO-cPCI, User Manual, Page: 19 / 46

Spectracom Corporation TPRO-cPCI/TSAT-cPCI
Synchronizable Timecode Generator User Manual 3-3
Table 3.5—Supplied GPS Antenna Cable
TSAT-cPCI Only
Length 30.5 m ± 0.3 m (100 ft ± 1 ft)
Cable Size 9 mm (0.4 inch) O.D.
Antenna Connector Size 20 mm (0.8 inch) O.D.
Board Connector Size 34 mm X 16 mm (1.4 inch x 0.6 inch)
Outer Jacket Black PVC with U/V Stabilizer/Inhibitor
Internal Wires 5 Twisted Pairs, 22 AWG, stranded, insulated wire
EMI Shield Foil (100% Coverage) and drain wire
Table 3.6—Optional Extension Cable for TSAT-cPCI
Length 30.3 m ± 0.3 m (99.5 ft ± 1 ft)
Cable Size 9 mm (0.4 inch) O.D.
Connector Size (both ends) 34 mm X 16 mm (1.4 inch x 0.6 inch)
Table 3.7—Time Code Input
TPRO-cPCI Only
Connector DB-15 TIMING, Pins 1(+) and 2(–)
Format (detected automatically) IRIG-B(122) or IRIG-A(132)
Amplitude (mark) IRIG-A
Amplitude (mark) IRIG-B 1.2 Vp-p (min), 8.0 Vp-p (max)
1.2 Vp-p (min), 8.0 Vp-p (max)
Modulation Ratio 2:1 min, 3:1 typical, 4:1 max
Time Base Error ±25 ppm max
Input Impedance 10K ohm
Common-Mode Voltage (relative to signal ground) ±100 V max
Acquisition Time 15 seconds max
Table 3.8—Time Code Output
Connector DB-15 TIMING, pin 4
Format IRIG-B(122)(CF and SBS fields not used)
Amplitude (mark) 3.0 Vp-p min, 4.0 Vp-p typical, 6.5 Vp-p max; into 50 ohms
Modulation Ratio 3:1 (typical)
Time base Error same as specified for the on-board clock
Table 3.9—Time Tag Input
Connector DB-15 TIMING, pin 5
Tagged Edge Rising
Input Voltage (high) +2.2 V min, +5.1 V max
Input Voltage (low) –0.1 V min, +0.4 V max
Input Current (high) 100 uA max
Input Current (low) –600 uA max
Input Termination (on-board) 10.7K ohms to +5 Volts
Rise/Fall Time 150 nS max
Pulse Width (time high) 1 uS min, 999.999 mS max