HP 5501A Operating And Service Manual page 186

g.
Install beam protection equipment if required. Refer to Section II.
h. Align the system. Refer to Section II
i.
Verify that the LED o n each receiver lights and the voltage at the receiver test point is
between 0.6 and 1.5V dc. Block the laser beam between the interferometer and retro-
reflector in each axis and verify the applicable receiver LED goes out.
j.
If the optional 5510A Opt. 010 Automatic Compensator i s used, install the unit (refer to
the 5510A Automatic Compensator Operating and Service Manual) and place the
sensors as determined by the measurement path layout (refer to Section 11). For an
explanation of the individual controls on the 5510A Opt. 010, see Figure 4-8.
k. Remove system power
5.5
WSTALLATION OF ELECTROMC WERFACE
COMPONENTS
The procedures for the installation of the electronic interface are subdivided into the following
categories:
a. Calculator Interface Electronics installation.
b.
Computer Interface Electronics installation.
I . Counter-based system installation.
2. Comparator-based system installation.
c. English/Metric Pulse Output Electronics installation.
d. 10781A Pulse Converter Electronics installation.
Each of these procedures is complete. Therefore, select the procedure that matches your sys-
tem and perform the indicated steps.
5.6
HP-IB INTERFACE ELECTRONICS INSTALLATION
The HP-IB lnterface Electronics i s a wired interface between the 5501A Laser Transducer and
any digital controller compatible with the Hewlett-Packard lnterface Bus (HP-IB). The basic
interface system works with a 9825A Programmable Calculator and interface electronics for
two axes of measurement. All interconnecting cables between the Calculator lnterface Elec-
tronics and the 5501A Laser Transducer are supplied.