3-1
3.1
Introduction
This section contains basic information on using the Model
7016A including signal limitations and switching consider-
ations. For detailed mainframe operating information, refer
to the Model 7001 or Model 7002 Instruction Manual.
3.2
Signal limitations
CAUTION
To prevent damage to the Model 7016A,
do not exceed the maximum signal level
specifications of the card.
To prevent over-heating or damage to the relays, never ex-
ceed the following maximum signal levels when using the
Model 7016A:
• Maximum voltage: Any center conductor or shield to
any other center conductor or to chassis: 30V.
• Maximum current: 0.5A per channel.
• Maximum power: 10VA switched up to 900MHz, 3VA
@ 2GHz.
3.3
Front panel control
3.3.1 Closing and opening channels
To close a Model 7016A multiplexer channel, simply key in
the CHANNEL assignment (1-8), then press the Model
7001/7002 CLOSE key. For example, to close channel 4 of a
Model 7016A installed in slot 2, key in the following channel
list, and press CLOSE:
SELECT CHANNELS 2!4
To open a closed channel, simply press OPEN or OPEN
ALL.
Channels are organized into two multiplexer banks as fol-
lows:
Multiplexer A: channels 1 to 4
Multiplexer B: channels 5 to 8
You can also simultaneously close one channel in each mul-
tiplexer by including both channels in the channel list. For
example, to close channels 1 and 5 of a card in slot 1, enter
the following channel list at the prompt:
SELECT CHANNELS 1!1, 1!5
(Note that channels are separated by a comma, which can be
inserted by pressing either the ENTER or right cursor key.)
NOTE
To maintain 50
Ω
characteristic impedance,
close only one channel per multiplexer si-
multaneously. Closing more than one
channel per multiplexer may cause unex-
pected results. Program the Model 7001/
7002 for restricted operation to avoid clos-
ing more than one channel at a time.
Again, you can open closed channels with the OPEN or
OPEN ALL key. (OPEN opens only channels in the channel
list while OPEN ALL opens all channels.)