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B
Register Definitions
Bit
Purpose
Setting
Agilent N9379A 48-Channel High-Density Load Card
Bit
Purpose
Setting
B-46
0 = NC shorted to COM, NO is open. The power buses selected
are determined by how the card is configured. Writing to this
register starts the relay timer.
7
6
Pwr24
Pwr23
state
state
• Write Only
• State: 1 = NO, shorted to Pwr node
• State: 0 = NC, shorted to Pwr node
• Power On/Reset State = 0 (all channels connected to NC)
The Agilent N9379A high-density load card provides 48
channels with two loads per channel. It is not equipped for
current sensing and does not provide flyback voltage protection.
It provides an output relay in a general-purpose configuration.
Loads are mounted onboard on a series of mezzanine cards that
plug into the load card. You can attach as many as two loads per
channel. See
High-Density Load Card"
information.
Unless otherwise noted, writing a 1 closes (energizes) a relay,
and writing a 0 opens (de-energizes) the relay. The reset and
power-on state for all relays is open.
Card Type (R) Base + 0
This register reads back the card type of the card. The N9379A
is uniquely identified by card type 06
7
6
5
Card
Card
Card
Type
Type
Type
0
0
0
• Read Only
• Power On/Reset State = 06
5
4
3
Pwr22
Pwr21
Pwr20
state
state
state
"Using the Agilent N9379A 48-Channel
for a block diagram and more
h
4
3
Card
Card
Type
Type
0
0
h
E6198B Switch/Load Unit User Manual
2
1
Pwr19
Pwr18
Pwr17
state
state
state
.
h
2
1
Card
Card
Card
Type
Type
Type
1
1
0
0
0
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