HP 53150A Series Programming Manual page 47

Chapter 3 Programming Your Counter for Remote Operation
Connecting the Counter to a Computer
To Connect With the RS-232 Serial Interface
The HP 53150A, 53151A, and 53152A Frequency Counters use an RJ12
modular connector for the RS-232 interface. This connector is accessible
through the back panel of the counter, as shown in Figure 3-2.
Main ~ Power
Reference 10 MHz
11 TO 18 VDC
EXT DC
RS-232 (RJ12) Connector
Figure 3-2. Location of the RS-232 (RJ12) Connector
To connect the Counter to a computer using the RS-232 interface, you
need a serial cable that has an RJ12 modular connector at the Counter
end and a female DB25 connector at the computer end.
Making an RS-232 Cable
Most computers use male DB25 connectors for their serial ports.
Therefore, you must use either a cable with an RJ12 plug at the Counter
end and a female DB25 connector at the computer end or a double-ended
RJ12 cable and an RJ12-to-DB25F adapter to interface the Counter with a
computer. Since pre-manufactured RJ12/DB25 cables are rare, it is
probably most efficient to obtain the necessary parts, and assemble the
cable yourself.
Programming Guide
Made in U.S.A.
with domestic and foreign content
OPTIONS
001 Oven Time Base
002 Battery
Auxillary
WARNING:
In
To avold electric shock,
or
do not remove covers.
Out
No user-serviceable parts inside.
Refer all servicing to qualified personnel.
This unit must be earth grounded.
AC POWER
100 – 130 VAC, 50/60/400 Hz 75 VA
220 – 240 VAC, 50/60 Hz 75 VA
RS-232
ISM 1-A
FUSE
1.0 A T
250 V
3-7