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Agilent 34945A Microwave Switch/Attenuator Driver Module User’s Guide
2
Hardware Configuration
ROUTe:RMODule:BANK:DRIVe:MODE
ROUTe:RMODule:BANK:LED:DRIVe:ENABle
ROUTe:RMODule:BANK:LED:DRIVe:LEVel
ROUTe:RMODule:BANK:PRESet
ROUTe:RMODule:DRIVe:LIMit
ROUTe:RMODule:DRIVe:SOURce:BOOT
ROUTe:RMODule:DRIVe:SOURce:IMMediate
For these commands, the 34945EXT address is in the form:
<
slot #
><
34945EXT #
><00>
where:
slot # -
is the 34980A slot where the 34945A is installed. This is a single digit
between 1 and 8.
34945EXT
#
- is the 34945EXT module. This is a single digit between 1 (the
master 34945EXT) and 8. 34945EXT modules are numbered according to
their position in the daisy-chain sequence relative to the master.
For example, for a 34945A installed in 34980A
slot 1
:
ROUT:RMOD:BANK:PRES 2,(@1200)
presets bank 2 on 34945EXT slave
module number 2
.
Relay/Channel Relationship
The Agilent switches and attenuators listed in Table 1-2 are latching relays.
Therefore, there is a relay coil for each switch or attenuator position. In the
factory default configuration (
SYSTem:RMODule:RESet <slot>
),
a
distribution board channel is assigned to each relay coil
. There are 16
channels per distribution board.
Channel Pairing
Channel numbers on the distribution boards are arranged to facilitate channel
pairing for dual-coil switches and attenuators. In paired configurations,
channels 01-08 are paired with 11-18 (bank 1), 21-28 with 31-38 (bank 2),
41-48 with 51-58 (bank 3), and 61-68 with 71-78 (bank 4). Paired channels are
controlled by a single command (e.g.
OPEN
or
CLOSE
) in which only the
lower
channel of the pair is specified. When a command (
OPEN
or
CLOSE
) is sent,
the operation sends a drive pulse to either the first or second channel in the
pair - either opening or closing the channel.
For the channel pair 01/11, the following syntax:
ROUT:CLOS (@1101)
- sends a drive pulse to the upper channel (1111)
ROUT:OPEN (@1101)
- sends a drive pulse to the lower channel (1101)
