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4 — Specifications
This section contains the electrical, physical, and environmental specifications for the 5401
and 5402 Disciplined Rubidium Oscillator.
Input Specifications and Characteristics
Table 4 Input Specifications and Characteristics
5401 DC Power Input (J15) Type
Connector Pin Assignments:
Pin
A
B
C
D
E
5401 Fuse
5402 AC Power Input (J1) Type
Using the standard power supply:
Input Voltage
5402 Fuse
DRO 1 PPS Input Type
The 1 PPS input accepts a signal with the following characteristics:
Level
Rise Time
Fall Time
Pulse Width
Input Impedance
PN 8500-0150, Rev. A, May 2005
MS27499E10B5P
Function
Rubidium Lock Status
Chassis Ground
Not Used
+28 VDC (+18 to +36 VDC) (Approximately 2.5 amps at
initial turn-on and 1.4 amps after stabilization.)
Power Return
10 amp fast blow, 3 AG
IEC connector
5401: DC = +18 V to 36 VDC, MIL-STD-704
< 80 W (warmup)
< 40 W (steady-state)
5402: AC = 90 to 240 VAC (47-440 Hz)
< 80 W (warmup)
< 40 W (steady-state)
3 amp fast blow, Microfuse
5401: Isolated SMA (J13)
5402: Isolated BNC (J2)
TTL or +10 VDC ±1 VDC, selectable via RS-232
< 20 nanoseconds (10% to 90%)
< 1 microsecond (90% to 10%)
20 nanoseconds to 100 microseconds
50
Operating Manual
Specifications
26
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