Keysight Technologies L4490A, Руководство пользователя

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Keysight L4490A/L4491A User’s Guide 39
Hardware Configuration
Channel Numbering
The 34945EXT in the L4490A/L4491A RF switch platform uses the following
channel numbering scheme:
1< ext # >< channel >
where:
ext # is the 34945EXT module and is a single digit in the range of 1 (master) to
2 (slave - a second 34945EXT in the L4491A). Note that up to seven slave EXT
modules may be used per master 34945EXT in the L4490A/L4491A.
channel is the channel number in the specified EXT module bank.
Channel numbers for two 34945EXT modules are shown in Figure 2-2 and also in
the table below.
An example of this syntax is:
ROUT:CLOS (@1141)
which closes channel 41 (bank 3) on 34945EXT module number 1 (Figure 2-1).
A range of channels is specified as:
ROUT:CLOS (@1101:1138)
which in this example closes channels 1 (bank 1) through 38 (bank 2) on 34945EXT
module number 1 (channel ranges can extend across banks).
Module- and Bank-Level Commands
Selected commands within the L4490A/L4491A SCPI command set contain
parameters that specify the 34945EXT itself, or a bank on the 34945EXT rather
than a channel list. These commands include:
34945EXT #1 (Master) 34945EXT #2 (Slave)
Bank Channels Channels Bank Channels Channels
Bank 1 1101 to
1108
1111 to
1118
Bank 1 1201 to
1208
1211 to
1218
Bank 2 1121 to
1128
1131 to
1138
Bank 2 1221 to
1228
1231 to
1238
Bank 3 1141 to1148 1151 to
1158
Bank 3 1241
to1248
1251 to
1258
Bank 4 1161 to
1168
1171 to
1178
Bank 4 1261 to
1268
1271 to
1278