Specifications

Operating Manual SEFRAM 4451
M4451 A00
18
than the combined rise times of the testing system, determine the actual rise time of the device under test by
using the following formula:
Rt equals the overall rise time or fall time of the entire measurement system and R1, R2, R3, etc. are the rise
times or fall times of the individual components in the system.
2.8 GPIB Connections
The rear panel GPIB connector is a AMPHENOL 57-10240 or equivalent, and connects to a standard IEEE-
488 bus cable connector. The GPIB line screens are not isolated from chassis and signal ground.
The instrument is shipped with the address set to decimal 10. The address can be changed from the front
panel by using the "SPCL" menu, refer to "SPECIAL FUNCTIONS".
GPIB connector
2.9 RS-232 Connection
The rear panel RS-232 connector is a standard DB-9 male connector configured as a
DCE:
Rt Rt Rt Rt=+++( ) ( ) ( ) ......1
2
2
2
3
2