HP E1442A VXI 64-Channel General Purpose Switch

Product Summary

The HP 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 HP 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.

Product Features

• Any combination of channels can be closed or opened
• Nonlatching armature relays
• External devices can be actuated
• Includes HP QUIC easy-to-use terminal block
• Internal buses simplify wiring Description
• VXIplug&play frameworks are supported per the Instrument Drivers information listed below

Note: Configuration software that allows you to easily select compatible interfaces, controller platforms, and VXI test system components is available on CD ROM. Order the "Test System and VXI Products Catalog and CD ROM" from the Test & Measurement Catalogs available on this web site.

Product Specifications

Form: C (SPDT) A (SPST)
Number of Channels: 64




Input (HP E1442A):
Maximum voltage: 150 Vdc, 150 Vrms, 210 Vac peak High to Low, or any terminal
   to chassis (this is derated to 42 Vdc or 60 Vac peak if the internal buses are used for any
   channel or Opt 010 is used).
Maximum current (noninductive, per switch): 1 A dc or ac rms
Maximum power: 40 VA ac or 40 W dc per switch
		320 VA or W per module




DC (HP E1442A):
Maximum thermal offset: 70 µV per channel
Closed channel resistance (typical):
	<1.5 Ohm (inital)
	<3.5 Ohm (end of life)  
Insulation resistance (between any two points):
	<=40° C, <=65% RH:  >10E7 Ohm
	<=25° C, <=40% RH:  >10E8 Ohm




AC (HP E1442A):
Typical bandwidth (-3 dB): 10 MHz
Crosstalk (dB, channel-to-channel):
	<100 kHz:	<-70
	<10 MHz:	<-28
Closed channel capacitance:
	<40 pF channel-to-common
	<30 pF channel-to-channel




General (HP E1442A)
Typical relay life:
	>5x10^6 no load operations
	>10^5 at rated load
Time to Open/Close a Channel (using register programming): 13 ms
Connection types:
	Standard HP E1442A: Solder lug connectors
	HP E1442A with Opt 010: (replaces standard terminal block) Provision 
        to add dual 96-pin DIN-C connectors or solder wires directly to terminal block
        pc board, 0.055 inch holes, 20 AWG maximum recommended.
	HP E1442A with Opt 020: (replaces standard terminal block) Screw terminals
	for Com and NO contacts only. 16 AWG (1.5mm) maximum.

VXI Characteristics
VXI device type:        Register-based,A16, slave only
Size:                   C
Slots:                  1 
Connectors:             P1/P2
Shared memory:          None
VXI busses:             None
C-size compatibility:   n/a
Instrument Drivers
Click here 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
HP VEE Drivers:          Yes
VXIplug&play Win 
Framework:               Yes
VXIplug&play Win95/NT 
Framework:               Yes
VXIplug&play HP-UX 
Framework:               No (not available at time of publication)



Module Current
               IPM        IDM 
+5 V:          0.1       0.11



Cooling/Slot
Watt/slot:5.00
deltaP mm H2O:  0.15
Air flow liter/s:  0.42

Product Ordering Information

HP E1442A	VXI 64-Channel General Purpose Switch
   Opt 010	Pull up/pull down resistors  
   Opt 020	Form A contacts (64) instead of Form C  
   Opt 0B3	Service manual  
   Opt W01	3-yr. return to HP to 1-yr. on-site warranty

HP E1442-80011	 Extra terminal block (Opt 020)
HP E1442-80014	 Extra terminal block (E1442A)
HP E1442-80010	 Extra terminal block (Opt 010)

HP E1442A Technical Specifications Datasheet

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Page Updated: Thursday June 19 16:15:42 UTC 1997