B-46 E6198B Switch/Load Unit User Manual
B Register Definitions
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.
• 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)
Agilent N9379A 48-Channel High-Density Load Card
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 “Using the Agilent N9379A 48-Channel
High-Density Load Card" for a block diagram and more
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
h
This register reads back the card type of the card. The N9379A
is uniquely identified by card type 06
h
.
• Read Only
• Power On/Reset State = 06
h
Bit 76543 210
Purpose
Pwr24Pwr23Pwr22Pwr21Pwr20Pwr19Pwr18Pwr17
Setting state state state state state state state state
Bit 76543210
Purpose
Card
Type
Card
Type
Card
Type
Card
Type
Card
Type
Card
Type
Card
Type
Card
Type
Setting 00000110
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