HP 5501A Operating And Service Manual page 193

t.
Remove the front panel of the coupler.
g.
Check the addresses and jumpers on all system cards and units. It is advisable to make
a list of each of the system addresses for future reference. Refer to the individual unit
manuals if it is necessary to change addresses or jumpers. Refer to Tables 5-2a thru 5-2e
for 10764B resolution extension switch settings.
h. Install all cards in the 10740A Coupler (see Figure 5-5). Be certain that if more than
one 107648 Fast Pulse Converter card is used, they are installed in the proper order.
NOTE
If more than one 10764B Fast Pulse Converter card
i s
used the
physical configuration of the reference/measurement cable
restricts the installation of the hooded connectors to a unique
order. Therefore, it i s very important that you connect the cor-
responding measurement legs of the cable to the appropriate
receivers. If the optimum optical measurement path layout
makes this impossible, it will be necessary to exchange cards
in their slot or re-address the 107648 Fast Pulse Converters to
conform to the actual system configuration (refer t o the 107648
Fast Pulse Converter Operating and Service Manual).
Connect the reference/measurement cable from the laser head and first two receivers
to the first 10764B Fast Pulse Converter card (see Figure 5-8 for a typical system setup).
If the system includes more than two measurement axes, connect the hooded connec-
tors in sequence to each of the additional 107648 Fast Pulse Converter cards in the
system and the associated pairs of RF cables to the 10762A Comparator cards.
k. If the standard 10756A Manual Compensator is used, mount it on the edge connector
of the 10755A Compensation Interface.
I.
Apply system power and verify that the reference and measurement LED indicators
located near the bottom front edge of each counter card lights (the reference LED in-
dicator i s the one closest to the front edge). Remove system power.
1.
Connect the system controller to the 10746A Binary Interface. Use the cable fabricated
during the preliminary procedure. Connect the interface cables between each 10762A
Comparator in the coupler to the drive system of the machine.
n.
If 10783A Numeric Displays are used, connect them to the system controller using the
10631A, B, or C cables. Refer to the 10783A Numeric Display Operating and Service
manual.
o.
Apply system power. At the rear panel of the 10740A Coupler, verify that the voltage
is +I5 M.25V dc, -15 k0.25V dc, and +5 +0.10, -0.05V dc (see Figure 5-4).
5.9.1 10764B RESOLUTION EXTENSION. Provision i s made to select one of 32 resolution
factors by means of three switches located on the 10764B. A 4-pole switch labelled P is common
to both axes. Two 4-pole switches labelled Q are for the separate measurement axes. The Q
switches must have only one switch set up (away from the dot) at any one time. Any combination
that results in a number between 8 and 15 may be used on the P switch. The available combina-
tions for the various modes are listed in Tables 5-2a through 5-2e.
NOTE
System resolution
=
Q/P
X
A/4 for linear interferometer and Q/P
X
A 8
for plane mirror.