Advertisement
6
When a Model 1421 or 1422 amplifier is not being
cascaded with other amplifiers, the male output
connector may be inconvenient. For this situation,
New Focus offers a cable assembly with a female K-
connector on one end and a male K-connector on
the other: Model 1227 40-GHz Cable Assembly.
DC-power is supplied to the amplifier via a 3-pin
Microtech connector. This is the same connector
used on the New Focus Model 0901 Power Supply.
Two cables are provided for the power connection.
If the Model 1421 or 1422 is to be used with the
Model 0901, use the Microtech-to-Microtech con-
nector cable only. If the Model 1421 or 1422 is to
be used with a power supply other than the Model
0901, use the Microtech-to-banana cable and
observe the following precautions:
• Input voltage range is 15 to 8 V at 250 mA on the
positive (red) banana plug.
• Input voltage range is -15 to -8 V at 100 mA on
the negative (black) banana plug.
• The negative supply must be turned on first or
simultaneously with the positive supply. If the
positive supply is turned on first, the unit could
be destroyed.
• The two supplies should share a common
ground which should be connected to the green
banana plug.
Advertisement
