Data Sheet
PDFINFO H 5588- 01
64-Channel Form C or Form A
Switch
Agilent E1442A
• 1-Slot, C-size, register based
• Any combination of channels can be closed or opened
• Nonlatching armature relays
• External devices can be actuated
• Includes QUIC easy-to-use terminal block
• Internal buses simplify wiring
Agilent E1442A
Description
The Agilent E1442A 64-Channel General-Purpose Switch is a
C-size, 1-slot, register-based VXI module that contains
nonlatching Form C type relays. They can be used for device
actuation, as digital output modules, or to create flexible
signal switching topologies.
Each product has two parts—a component card containing
the relays, that plugs into the mainframe, and a removable
terminal block that plugs onto the component card. The
component card has 64 Form C relays with three independent
axial component locations per relay. These locations can be
used for jumpers, fuses, or pullup/down and protection
resistors. All three relay terminals can be connected through
such components to one of three internal buses.
The E1442A terminal block comes standard with solder lugs
that allow full access to the Form C (SPDT) capability of the
component module relays. Option 020 has a screw terminal
block that allows access to the Form A (SPST) contacts only.
Option 010 gives you complete Form C connectivity with
more customization versatility.
Refer to the Agilent Technologies Website for instrument
driver availability and downloading instructions, as well as for
recent product updates, if applicable.
Agilent Technologies
PDFINFO H 5588- 02
2
Product Specifications
Input
Maximum voltage (C to NC or NO or any terminal-to-chassis):
DC: 150 V
AC rms: 150 V
AC peak: 210 V
Maximum current (noninductive, per switch):
DC: 1 A
AC rms: 1 A
Maximum power:
Per switch:
DC: 40 W
AC: 40 VA
Per module:
DC: 320 W
AC: 320 VA
DC
Maximum thermal offset: 70 µV
Closed channel resistance:
Initial: <1.5 Ω typical
End of life: <3.5 Ω
Insulation resistance (between any two points):
≤40°C, ≤ 65% RH: n/a
≤40°C, ≤ 95% RH: >10E7 Ω
≤25°C, ≤ 40% RH: >10E8 Ω
AC
Typical bandwidth (–3 dB): 10 MHz
Crosstalk (dB, channel-to-channel):
<10 kHz: n/a
<100 kHz: <–70
<1 MHz: n/a
<10 MHz: <–28
Closed Channel Capacitance
Ch-to-ch: <30 pF
Ch-to-com: <40 pF
General
Typical relay life (number of operations):
No load: >5x10E6
Rated load: >10E5
Time to close or open a
channel (register
programming):
13 ms
Connector type, wire size:
Standard: 2 DIN-Cs with solder lugs Opt 010: solder
eyes
Screw: ≥18 AWG (1.2 mm), Opt 020
Power up/down states: All open, i.e., nonlatching
Terminal Block
Connection types:
Standard: Solder lug connectors
E1442A with Opt 010: Replaces standard terminal block with
provision to add dual 96-pin DIN-C connectors
or solder wires directly to terminal block pc
board, 0.055 moh holes, 20 AWG max.
recommended.
E1442A with Opt 020: Replaces standard terminal block with screw
terminals for com and no contacts only,
16 AWG (1.5 mm) max.
PDFINFO H 5588- 03
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Cooling/Slot
Watts/slot: 5.00
∆P mm H
2
O: 0.15
Air flow liter/s: 0.42
Ordering Information
Description Product No.
64-Channel Form C/A Switch w/QUIC Interface E1442A
Form C Switch, QUIC interface, solder terminal block with
pull-up/pull-down resistor dividers E1442A 010
Form A Switch, QUIC interface, screw terminal block E1442A 020
Same as standard E1442A except replaces QUIC interface
with "old style" terminal block and front panel E1442A 106
Same as E1442A Option 010 except replaces QUIC interface
with "old style" terminal block and front panel E1442A 116
Same as E1442A Option 020 except replaces QUIC interface
with "old style" terminal block and front panel E1442A 126
Service Manual E1442A 0B3
Ordering Instructions
If you want…
• a Form C switch, QUIC interface and solder terminal block, please order the
E1442A.
• a Form C switch, QUIC interface and solder terminal block with pull up/
pull down resistive divider, order the E1442A with Option 010.
• a Form A switch, QUIC interface and screw terminal block, order the E1442A
with Option 020.
Note:
—The E1442A Option 106 is the same as the standard E1442A, but with the
"old style" terminal block & front panel.
—The E1442A Option 116 is the same as the E1442A Opt. 010, but with the
"old style" terminal block & front panel.
—The E1442A Option 126 is the same as the E1442A Option 020, but with the
"old style" terminal block & front panel.
—There is not an option to order pull up/pull down resistive dividers with the
Form A option, and there is not an option to order Form C with screw
terminal block.
Module Current
I
PM
I
PM
+5 V: 0.1 0.11
+12 V: 00
–12 V: 00
+24 V: 00
–24 V: 00
–5.2 V: 00
–2 V: 00
Instrument Drivers
See the Agilent Technologies Website (http://www.agilent.com/find/
inst_drivers) for driver availability and downloading.
Command module
firmware: Downloadable
Command module
firmware rev: A.06
I-SCPI Win 3.1: Yes
I-SCPI Series 700: Yes
C-SCPI LynxOS: Yes
C-SCPI Series 700: Yes
Panel Drivers: Yes
VXI
plug&play
Win
Framework: Yes
VXI
plug&play
Win 95/NT
Framework: Yes
VXI
plug&play
HP-UX
Framework: No
General Specifications
VXI Characteristics
VXI device type: Register based, A16, slave only
Size: C
Slots: 1
Connectors: P1/2
Shared memory: None
VXI busses: None
C-size compatibility: n/a
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