Symmetricom 5402 User Manual
PN 8500-0150, Rev. A, May 2005
27
Operating Manual
Specifications
Output Specifications and Characteristics
5401 RS-232 Input/Output Type
MS27499E10B35S
5401 Connector Pin Assignments:
Pin Function
1 Chassis
Ground
2 Transmitted
Data
3 Received
Data
4 Signal
Ground
5-13 Not
Used
5402 RS232 Input/Output Type
DB9
5402 Connector Pin Assignments:
Pin Function
2 Transmitted
Data
3 Received
Data
5 Signal
Ground
DRO RS-232 Parameters:
Baud
9600
Parity
None
Word Length
8 Bits
Stop Bits
1
Table 5 Output Specifications and Characteristics
DRO 1 PPS Output Type
5401: Isolated SMA (J1-J6)
5402: Isolated BNC (J4-J9)
The DRO outputs 1 PPS signals with the following characteristics:
Level
> 3 V peak into 50
Ω (TTL-compatible)
Rise Time
5 nanoseconds (20% to 80%)
Fall Time
1 microsecond (90% to 10%)
Pulse Width
20 microseconds ±0.1 microseconds
Output Impedance
50
Ω
Table 4 Input Specifications and Characteristics (Continued)