
C&H Technologies, Inc. • 445 Round Rock West Drive • Round Rock, TX 
(512) 
M221
8 Channel
Form C Switch
M Module
Specifications:
Inputs:
Maximum Voltage (terminal to terminal or chassis)**
DC:  | 60V/200V  | 
AC rms:  | 48V/141V  | 
AC peak:  | 68V/200V  | 
Maximum Current   | |
Per Switch:  | 
  | 
DC:  | 1A  | 
AC peak:  | 1A  | 
AC rms:  | 0.7A  | 
Maximum Power Per Switch/Per  | |
Module:  | 
  | 
DC:  | 40W/100W  | 
AC:  | 40VA/100VA  | 
DC Characteristics**:
Thermal Offset: <20_V (typical)
Contact Resistance:  | <n/a_  | 
Contact Resistance (EOL): <3.5_  | |
Insulation Resistance:  | 10E7 _  | 
** See manual for conditions
AC Characteristics:
Bandwidth 
Crosstalk (typical)
<100 KHz:  | 
  | |
<1 MHz  | 
  | |
<10 MHz  | 
  | |
Close channel capacitance:  | ||
<30 pF (typical)  | ||
<40 pF (typical)  | ||
Typical Relay Life at Rated Load:  | ||
  | 10E5 operations  | |
Time to open or close:  | 13 msec  | |
Connectors:  | 
  | 44 pin DSUB  | 
  | 
  | (Female)  | 
Temperature:  | 
  | 
  | 
Operating:  | 
  | 0°C to 55°C  | 
Storage:  | ||
Power: | +5V @ 0.02 A  | |
  | +12V @ 0.13 A  | |
The M221 (formerly Agilent E2273A) provides 8 independent 
M Module Compliance
Complies with ANSI/VITA Std 12- 1996 for 
Data Transfers  | 16 bit  | 
InterruptsINTC
Compatible with VXI, VME, PCI, PXI, CPCI & Ethernet Carriers
Applications
•LF Signal Switching
•Microwave relay control
Ordering Information
Part Number  | 
Additional Information
User Manuals for C&H carriers and this module can be found on our website at www.chtech.com.