E2270A Agilent Switch Card

Additional Features:

• 16-Channel Form A Switch M-Module
• Single wide, register based
• Use for general purpose switching
• 16 independent SPST latching relays
• FIFO for storing up to 8 relay operations
• VXI device type: Register based
• C-size compatibility: Yes with E2251A

Maximum voltage (any terminal to any other terminal or chassis):

• DC: 60 V/200 V 
• AC rms: 48 V/125 V 
• AC peak: 68 V/175 V 

Maximum current (noninductive):
Per switch:

• DC: 2 A
• AC peak: 2 A

Per module:

• DC: 8 A
• AC peak: 8 A

Maximum power:
Per switch:

• DC: 50 W
• AC: 50 VA

Per module:

• DC: 200 W
• AC: 200 VA

DC

• Maximum thermal offset: <3 μV (typical)
• Closed channel resistance:
• Initial: <0.2 W (typical)
• End of life: <2 W

Insulation resistance (between any two points):

• ≤40 °C, ≤65% RH: 10E8 W (typical)
• ≤25 °C, ≤40% RH: 10E8 W (typical)

AC

• Typical bandwidth (–3 dB): >10 MHz (typical)

Crosstalk (dB, channel-to-channel):

• <10 kHz: n/a
• <100 kHz: <–64 dB (typical)
• <1 MHz: <–44 dB (typical)
• <10 MHz: <–24 dB (typical)

Closed channel capacitance:

• Ch-to-ch: <15 pF (typical)
• Ch-to-com: <25 pF (typical)

General Characteristics

• Relays: 16 latching relays
• Typical relay life (number of operations):
• No load: n/a
• Rated load: 10E5
• Time to close or open a
• channel (register
• programming):
• 8 msec
• Connector type, wire size:
• Standard: 44 pin D-Sub
• Screw: n/a
• Power up/down states: Latching relays retain last programmed state

M-Module Characteristics

• Output connector type: 44-pin D-Sub (female)
• Standard compliance: IDENT, A08, D08, INTC
• Accessory: 44-pin D-Sub (male) with plastic housing

The Agilent E2270A 16-Channel Form A Switch is a singlewide, register-based M-Module. It furnishes 16 independent SPST latching relays for general purpose signal switching and control of external devices. Use this M-Module when you need high integrity contacts or quality connections of nonmultiplexed signals in your system.

Logic on the card provides for maskable interrupts (INTC type) when the requested relay movements have been completed. The module also has a FIFO for storing up to eight relay operations. You can write rapid setup changes to the module and execute them with only one interrupt occurrence once the entire group of relay movements is complete.

With each M-Module having its own address within the E2250A and E2251A M-Module carriers, you have the flexibility to use the M-Modules in many combinations. This flexibility allows you to get the amount of functionality you need in smaller blocks, lowering your overall system costs.