Symmetricom 5402, 5401 Input Specifications and Characteristics, Operating Manual Specifications

5401 DC Power Input (J15) Type

MS27499E10B5P

Connector Pin Assignments:

Pin

Function

A

Rubidium Lock Status

B

Chassis Ground

C

Not Used

D

+28 VDC (+18 to +36 VDC) (Approximately 2.5 amps at

initial turn-on and 1.4 amps after stabilization.)

E

Power Return

5401 Fuse

10 amp fast blow, 3 AG

5402 AC Power Input (J1) Type

IEC connector

Using the standard power supply:

Input Voltage

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)

5402 Fuse

3 amp fast blow, Microfuse

DRO 1 PPS Input Type

5401: Isolated SMA (J13)

5402: Isolated BNC (J2)

The 1 PPS input accepts a signal with the following characteristics:

Level

TTL or +10 VDC ±1 VDC, selectable via RS-232

Rise Time

< 20 nanoseconds (10% to 90%)

Fall Time

< 1 microsecond (90% to 10%)

Pulse Width

20 nanoseconds to 100 microseconds

Input Impedance

50

PN 8500-0150, Rev. A, May 2005

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