C&H Technologies M218 User manual

MODEL
M218
(FORMERLY
HP E2270A)
USER’S MANUAL
16-CHANNEL
FORM A SWITCH
M-MODULE
Document Part No: 11029534
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COPYRIGHT
C&H Technologies, Inc. (C&H) provides this manual "as is" without warranty of any kind, either
expressed or implied, including but not limited to the implied warranties of merchantability and
fitness for a particular purpose. C&H may make improvements and/or changes in the product(s)
and/or program(s) described in this manual at any time and without notice.
This publication could contain technical inaccuracies or typographical errors. Changes are
periodically made to the information herein; these changes will be incorporated in new editions of
this publication.
Copyright © 2006by C&H Technologies, Inc.
Portions of this manual have been copied from relevant Hewlett-Packard (Agilent) User Manual’s
with their expressed written permission. The information and/or drawings set forth in this
document and all rights in and to inventions disclosed herein which might be granted thereon
disclosing or employing the materials, methods, techniques, or apparatus described herein, are the
exclusive property of C&H Technologies, Inc.
A Reader's Comment Form is provided at the back of this publication. If this form has been
removed address comments to:
C&H Technologies, Inc.
Technical Publications
445 Round Rock West Drive
Austin, Texas 78681-5012
Or visit our web site for support information at:
http://www.chtech.com.
C&H may use or distribute any of the information you supply in any way that it believes appropriate without incurring any obligations.
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AMENDMENT NOTICE
C&H Technologies, Inc. makes every attempt to provide up-to-date manuals with the associated
equipment. Occasionally, changes are made to the equipment wherein it is necessary to provide
amendments to the manual. If any amendments are provided for this manual they are printed on
colored paper and will be provided with the module and manual. Manual updates may also be
found on out web site at www.chtech.com.
NOTE
The contents of any amendment may affect operation, maintenance,
or calibration of the equipment.
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INTRODUCTION
This manual describes the operation and use of the C&H Model M218 16-Channel Form A
Switch M-Module (Part Number 11029530). This module was formerly manufactured by HP
(Agilent) as Model E2270A. C&H obtained the manufacturing rights from Agilent and now
manufacturers it as C&H Model M218. This mezzanine module is designed to interface within
any M/MA-Module carrier adhering to the ANSI/VITA 12-1996 M-Module specification. These
carriers are available in many formats such as Ethernet, VME, VXI, PXI, cPCI, and the PC.
Contained within this manual are the physical and electrical specifications, installation and startup
procedures, functional description, and configuration and programming guidelines to adequately
use the product.
This manual is based on a low level register access, and is written in such a manner to provide
understanding to the user based on this type of access. If a driver is provided, please refer to the
driver documentation for instruction using the higher level interface provided by the driver.
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TABLE OF CONTENTS
1.0 GENERAL DESCRIPTION................................................................................................ 1
1.1 PURPOSE OF EQUIPMENT ................................................................................... 1
1.2 SPECIFICATIONS OF EQUIPMENT...................................................................... 1
1.2.1 Key Features............................................................................................ 1
1.2.2 Specifications........................................................................................... 2
1.2.3 Mechanical............................................................................................... 3
1.2.4 Bus Compliance....................................................................................... 3
1.2.5 Applicable Documents.............................................................................. 3
2.0 INSTALLATION................................................................................................................ 5
2.1 UNPACKING AND INSPECTION .......................................................................... 5
2.2 HANDLING PRECAUTIONS.................................................................................. 5
2.3 INSTALLATION OF M/MA MODULES................................................................. 5
2.4 PREPARATION FOR RESHIPMENT...................................................................... 6
3.0 FUNCTIONAL DESCRIPTION ......................................................................................... 7
3.1 OVERVIEW............................................................................................................. 7
3.1.1 M-Module Interface................................................................................. 7
3.1.2 Module Control........................................................................................ 7
3.1.3 ID EEPROM............................................................................................ 8
3.1.4 Row and Column Drivers......................................................................... 8
3.1.5 Driver Power Switch................................................................................ 8
3.2 IDENTIFICATION AND CONFIGURATION REGISTERS .................................10
3.2.1 I/O Registers.......................................................................................... 10
3.2.2 Module Identification............................................................................. 13
4.0 OPERATION.................................................................................................................... 14
4.1 FIFO STRUCTURE................................................................................................ 14
4.2 RELAY SET/RESET.............................................................................................. 14
4.3 MATRIX DRIVE TO CHANNEL MAPPINGS...................................................... 15
4.4 INTERRUPTS........................................................................................................ 15
APPENDIX A: CONNECTORS ............................................................................................A-1
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LIST OF FIGURES
Figure 1. M-MODULE Installation............................................................................................5
Figure 2. M218 Functional Block Diagram.................................................................................7
Figure 3. M218 Switching Schematic.........................................................................................9
Figure 4. M218 I/O Registers...................................................................................................11
Figure A-1. Front Panel I/O Signals.........................................................................................A-1
LIST OF TABLES
Table I. Specifications................................................................................................................2
Table II. I/O Address Map/Command Summary.......................................................................10
Table III. M/MA Module PROM IDENT Words......................................................................13
Table IV. Matrix Drive.............................................................................................................15
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1.0 GENERAL DESCRIPTION
The M218 provides 16 one-wire switches on a single wide M-Module adhering to the
ANSI/VITA 12-1996 specification for M-Modules. The M218 may be installed on any carrier
board supporting the M-Module specification. Carriers are available that allow the M218 to be
used in Ethernet, VXI, VME, PCI, cPCI and other system architectures.
1.1 PURPOSE OF EQUIPMENT
The M218 is a general purpose relay switch that can be used to connect test points on a device
under test to instrumentation or to switch factory automation and fixturing.
CAUTION: This module uses latching relays that retain their last programmed
state whenever power is removed (closed relays will remain closed
until opened via your test program).
CAUTION: This module DOES NOT have provisionsfor on-board current
limiting components (if input current can exceed 2A DC or 2A
AC, you must install external current limiting circuitry)
1.2 SPECIFICATIONS OF EQUIPMENT
1.2.1 Key Features
16 Latching Relays
Connector Type: 44-pin D-Sub
Interruptswhen requested relay movements have completed
Latching relays retain last programmed state
FIFO register structure allows fast system operation
Single-width M-Module provide high-density and maximum flexibility of configuration
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1.2.2 Specifications
The M218 incorporates the standard 40-pin, 20x2 row connector interfaces to the carrier board
for power and data/control, but does not have the 24-pin optional connector for carrying user-
connections back onto the carrier board.
The user input/output is provided through a standard 44-pin D-subminiature female receptacle. A
mating connector kit can be ordered separately as AM111 (C&H Part Number 11029700-0001).
CONEC part number 302A10889X (or equivalent)is used on the assembly. The connector pin-
outs are shown in Appendix A.
Table I. Specifications
MAXIMUM RATINGS
Parameter Condition Rating Units
Voltage Clean room Environment
(any terminal to any other terminal) 200 125
175
VDC
VACrms
VAC peak
Non-Clean room Environment
(any terminal to any other terminal) 60 48
68
VDC
VACrms
VAC peak
Current (non-inductive) Per Switch, DC
Per Switch, AC
Per Module, DC
Per Module, AC
2
2
8
8
A
Apeak
A
Apeak
Power Per Switch, DC
Per Switch, AC
Per Module, DC
Per Module, AC
50
50
200
200
W
VA
W
VA
Thermal Offset < 3 typ µV
RESISTANCE
Parameter Condition Rating Units
Closed Channel Initial
End of Life < 0.2 typ < 2 

Insulation Between any two points
≤40°C, ≤65% relative humidity
≤25°C, ≤40% relative humidity
108typ
108typ


RELAYS
Parameter Condition Rating Units
Relay Life at rated load 105operations
Timetoopen/close register programming 8 ms
Insulation Between any two points
≤40°C, ≤65% relative humidity
≤25°C, ≤40% relative humidity
108typ
108typ


AC CHARACTERISTICS
Parameter Condition Rating Units
Typical Bandwidth -3dB > 10 MHz
Crosstalk (channel-to-channel) <100 KHz
<1 MHz
<10 MHz
-64 typ
-44 typ
-24 typ
dB
dB
dB
Closed Channel Capacitance Channel-to-Channel
Channel-to-Common < 15 typ < 25 typ pF pF
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1.2.3 Mechanical
The mechanical dimensions of the module are in conformance with ANSI/VITA 12-1996 for
single-wide M-Module modules. The nominal dimensions are 5.687” (144.5 mm) long  2.082”
(52.9 mm) wide.
1.2.4 Bus Compliance
The module complies with the ANSI/VITA 12-1996 Specification for single-wide M-Modules
and the MA-Module trigger signal extension. The module also supports the optional IDENT and
VXI-IDENT functions.
Module Type: M-Module
Addressing: A08
Data: D16
Interrupts: supported
DMA: not supported
Triggers: not supported
Identification: IDENT
Manufacturer ID: 0FFF16 (See note below)
Model Number: 068616
VXI Model Number: 025B16
Note: C&H obtained the manufacturing rights from Hewlett Packard (Agilent) for this module. The
ID’s have been retained as Hewlett Packard to provide compatibility with existing SW drivers.
1.2.5 Applicable Documents
ANSI/VITA 12-1996 Standard for The Mezzanine Concept M-Module Specification, Approved
May 20, 1997, American National Standards Institute and VMEbus International Trade
Association, 7825 E. Gelding Dr. Suite 104, Scottsdale, AZ 85260-3415, http://www.vita.com
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2.0 INSTALLATION
2.1 UNPACKING AND INSPECTION
Verify that there has been no damage to the shipping container. If damage exists then the
container should be retained, as it will provide evidence of carrier caused problems. Such
problems should be reported to the shipping courier immediately, as well as to C&H. If there is
no damage to the shipping container, carefully remove the module from its box and anti static bag
and inspect for any signs of physical damage. If damage exists, report immediately to C&H.
2.2 HANDLING PRECAUTIONS
The module contains components that are sensitive to electrostatic discharge. When handling the
module for any reason, do so at a static-controlled workstation, whenever possible. At a
minimum, avoid work areas that are potential static sources, such as carpeted areas. Avoid
unnecessary contact with the components on the module.
2.3 INSTALLATION OF M/MA MODULES
All M-Modules must be installed into the carrier before the carrier is installed into the host
system. To install a module, firmly press the connector on the M/MA-Module together with the
connector on the carrier as shown in Figure 1. Secure the module through the holes in the bottom
shield using the original screws.
CAUTION: M/MA-Module connectors are NOT keyed. Use extra caution
to avoid misalignment. Applying power to a misaligned
module can damage the M/MA-Module and carrier.
M/MA-Module
Carrier
A B
Row not used
Figure 1. M-MODULE Installation
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2.4 PREPARATION FOR RESHIPMENT
If the module is to be shipped separately it should be enclosed in a suitable water and vapor proof
anti-static bag. Heat seal or tape the bag to insure a moisture-proof closure. When sealing the
bag, keep trapped air volume to a minimum. The shipping container should be a rigid box of
sufficient size and strength to protect the equipment from damage. If the module was received
separately from a C&H system, then the original module shipping container and packing material
may be re-used if it is still in good condition.
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3.0 FUNCTIONAL DESCRIPTION
3.1 OVERVIEW
A simplified functional block diagram is shown in Figure 2.
A(7:1)
D(15:0)
Carrier
Interface
/IACK
/CS
/DS0
/WRITE
GND
+5V
+12V
/DACK
/DREQ
COL(4:1)
Reset &
Power
Supply
Conditioning
ROW_SET(4:1)
DR_EN
VCC
ZGND
VCC
+5VDR
ROW_RESET(4:1)
/RESET
SYSCLK
/DS1
/IRQ
/DTACK
DGND
/RST
N.C.
N.C.
N.C.
COL_DR(4:1) ROW_DR(4:1)
Relay Coils
Driver
Power
Switch
Row
Drivers
Column
Drivers
Module
Control
VCC DGND
/RST
ROM
ID
EEPROM
Figure 2. M218 Functional Block Diagram
3.1.1 M-Module Interface
The M-Module Interface allows communication between the M218 and the carrier module. The
interface is an asynchronous 16-bit data bus with interrupt capabilities. The interface adheres to
the ANSI/VITA 12-1996 Standard for The Mezzanine Concept M-Module Specification for MA
modules.
3.1.2 Module Control
This block contains all of the logic for the module including all registers, interrupt control and
carrier interface.
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3.1.3 ID EEPROM
The EEPROM holds sixty-four 16-bit words of M-Module ID data and VXI M-Module data.
Refer to “ID EEPROM Register” on page 10 for EEPROM contents.
3.1.4 Row and Column Drivers
The module usesa matrix drive scheme (rows and columns) in which a maximum of four of the
relays (one row) can be operated at any one time. An on-board timer (part of Module Control
block) ensures the relay coils have been driven long enough for the contacts to move and settle.
The Row Driver block translates the ROW_SET(4:1) and ROW_RESET(4:1) command lines
from the Module Control block into bipolar and tri-state capable buffered drive signals. The
ROW_DR(4:1) signals provide either current source from the +5VDR supply (relay set), current
sink to ground (relay reset), or tri-stated output (both current-source and current-sink off). Each
output is tri-stated whenever that particular row is not being driven.
The Column Driver block translates the COL(4:1) command lines from Module Control into the
bipolar buffered drive signals, COL_DR(4:1). The COL_DR(4:1) signals provide either current
source from the +5VDR supply (relay reset) or current sink to ground (relay set).
3.1.5 Driver Power Switch
This block removes all power from the Row and Column Driver circuitry except when needed to
move relays. This FET switch is open at power-up to prevent any relay contact movement until
register writes cause drive-power to be applied.
3.1.7 Relay Coils
This block contains the 16 relay coils arranged as a 4x4 matrix. To close a relay, a ROW_DR line
sources current while a COL_DR line sinks current to ground. To open a relay, a COL_DR line
sources current while a ROW_DR line sinks current to ground. Refer to Figure 3 for switching
schematic.
3.1.8 Reset and Power Conditioning
This block filters +5V power to produce VCC power (+5V) for logic and isolates the various
grounds used by the module. This block also processes the /RESET signal from the Carrier
Interface and monitors power to produce the /RST reset signal for the module.
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Channel 0
Channel 1
Channel 2
Channel 3
1CH0_NO
16 CH0_COM
2CH1_NO
17 CH1_COM
3CH2_NO
18 CH2_COM
4CH3_NO
19 CH3_COM
Channel 4
Channel 5
Channel 6
Channel 7
5CH4_NO
20 CH4_COM
6CH5_NO
21 CH5_COM
7CH6_NO
22 CH6_COM
8CH7_NO
23 CH7_COM
31 - 42
Channel 8
Channel 9
Channel 10
Channel 11
9CH8_NO
24 CH8_COM
10 CH9_NO
25 CH9_COM
11 CH10_NO
26 CH10_COM
12 CH11_NO
27 CH11_COM
Channel 12
Channel 13
Channel 14
Channel 15
13 CH12_NO
28 CH12_COM
14 CH13_NO
29 CH13_COM
15 CH14_NO
30 CH14_COM
43 CH15_NO
44 CH15_COM
User
Connector
Pins
User
Connector
Pins
Figure 3. M218 Switching Schematic
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3.2 IDENTIFICATION AND CONFIGURATION REGISTERS
3.2.1 I/O Registers
There are a variety of registers used to configure and control the module. These registers are
located in the IOSpace. The address map of the registers is shown in Table II. Details of the
registers are provided in Figure 4.
Table II. I/O Address Map/Command Summary
Register Name Register Type FIFO-able
Register
(Y/N)
00h Status Register Read Only N
02h Control Register Read/Write N
04h-0Eh Reserved NA N
10h Row 0 Set Register Read/Write Y
12h Row 0 Reset Register Read/Write Y
14h Row 1 Set Register Read/Write Y
16h Row 1 Reset Register Read/Write Y
18h Row 2 Set Register Read/Write Y
1Ah Row 2 Reset Register Read/Write Y
1Ch Row 3 Set Register Read/Write Y
1Eh Row 3 Reset Register Read/Write Y
20h -7Eh Unused NA N
80h -FEh ID EEPROM Read/Write N
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Reg. 00 Status
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Read-only
Read Reserved INIT MPS FIFOE FIFOF INT
INIT Init Status (1 = initialized since last power up, 0 = not initialized since last power up)
MPS Multiplexer Size (Not used on M218)
FIFOE FIFO Empty Status (1 = FIFO currently empty, up to 8 writes available and not busy)
FIFOF FIFO Full Status (1 = FIFO currently full, additional writes are lost)
INT Interrupt Status (if enabled; 1 = interrupt line asserted, 0 = interrupt line not asserted)
Reg. 02 Control
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Reserved TM DPE STE INTE RST
Read Reserved
TM Timer Mode (proper operation is guaranteed only for the time = 8ms)
0 0 8ms
0 1 2ms
1 0 4ms
1 1 64ms
DPE Driver Power Enable (1 = enables power to relay drivers, 0 = removes power)
STE Self-Test Enable (1 = disable power to all row & column drivers and allows testing the
operation of the FIFO without causing relay movement, 0 = allows row & column drivers
to be powered (if driver power is enabled). Be sure the FIFO is empty before returning
this bit to 0.
INTE Interrupt Enable (1 = enables interrupts, 0 = disables interrupts)
RST Reset (1 = initiates a soft reset, 0 = releases module from reset condition)
Figure 4. M218 I/O Registers
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Reg. 10 Row 0 Set Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Unused R0C3 R0C2 R0C1R0C0
Read Unused R0C3 R0C2 R0C1R0C0
Reg. 12 Row 0 Reset Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Unused R0C3 R0C2 R0C1R0C0
Read Unused R0C3 R0C2 R0C1R0C0
Reg. 14 Row 1 Set Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Unused R1C3 R1C2 R1C1 R1C0
Read Unused R1C3 R1C2 R1C1 R1C0
Reg. 16 Row 1 Reset Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Unused R1C3 R1C2 R1C1R1C0
Read Unused R1C3 R1C2 R1C1R1C0
Reg. 18 Row 2 Set Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Unused R2C3 R2C2 R2C1R2C0
Read Unused R2C3 R2C2 R2C1R2C0
Reg. 1A Row 2 Reset Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Unused R2C3 R2C2 R2C1R2C0
Read Unused R2C3 R2C2 R2C1R2C0
Reg. 1C Row 3 Set Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Unused R3C3 R3C2 R3C1R3C0
Read Unused R3C3 R3C2 R3C1R3C0
Reg. 1E Row 1 Reset Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write Unused R3C3 R3C2 R3C1R3C0
Read Unused R3C3 R3C2 R3C1R3C0
RxCy Row x, Column y (1 = close relay, 0 = open relay)
Note: The Switch M-Modules use a row and column relay drive scheme. To close a particular relay, write a
logic “1” to the corresponding column in a Row n Set register. To open a relay, write a logic “0” in
the corresponding column in a Row n Reset register. For example, to close the Channel 04 relay on
the M218 (Row 1, Column 0 in relay drive scheme) place a logic “1” in bit 00 of the Row 1 Set
register. To open this relay, place a logic “0” in bit 00 of the Row 1 Reset register. Table Vshowsthe
correlation of the matrix drive rows and columns to Switch M-Module channels.
Figure 4. M218 I/O Registers (continued)
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3.2.2 Module Identification
The M218 supportsthe identification function called IDENT. This IDENT function provides
information about the module and is stored in a sixteen-word deep (32 byte) serial PROM.
Access is accomplished with read/write operations on the last address in IOSpace (hex FE) and
the data is read one bit at a time. The PROM is compatible with a standard IC 9603 type PROM.
For specific timing information refer to the 9603 or compatible PROM data sheet. Data should
not be written to the PROM.
The module also supportsthe VXI-IDENT function. This function is not part of the approved
ANSI/VITA 12-1996 standard. This extension to the M-module IDENT function increases the
size of the PROM to 64 words and includes VXI compatible ID and Device Type Registers.
Details are shown in Table III.
Table III. M/MA Module PROM IDENT Words
Word Description Value (hex)
0 Sync Code 5346
1 Module Number 0686
2 Revision Number 10001
3 Module Characteristics 20868
4-7 Reserved 0000
8-15 M-Module Specific 0000
16 VXI Sync Code ACBA
17 VXI ID 0FFF 3
18 VXI Device Type 3F25B (M218)
19-31 Reserved 0000
32-63 M-Module Specific 0000
Notes:
1) The Revision Number is the functional revision level of the module. It does not necessarily correspond
to the hardware assembly level.
2) The Module Characteristics bit definitions are:
Bit(s) Description
15 0 = no burst access
14/13 unused
12 0 = does not need 12V
11 1 = needs +5V
10 0 = no trigger outputs
9 0 = no trigger inputs
8/7 00 = no DMA requestor
6/5 11 = interrupt type
4/3 01 = 16-bit data
2/1 00 = 8-bit address
0 0 = no memory access
3) The VXI ID of 0xFFF is the identification value for Hewlett-Packard. C&H has left the ID equal to
this value to allow operation with existing E2270A software drivers. The revision number (see note 1)
can be used to identify the module as manufactured by C&H.
4) The VXI Device Type word contains the following information:
Bit(s) Description
15-12 F16 = 256 bytes of required memory
11-0 26016 = C&H specified VXI model code for M218
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4.0 OPERATION
The M218 is a register-based instrument that is controlled through a series of I/O registers
described in Section 3.2.1. The exact method of accessing and addressing the I/O registers is
dependent on the M-Module carrier used to interface the module to your data acquisition or test
system. Refer to the carrier’s documentation for information on the address mapping of an M-
Module’s I/O registers and to your system software documentation for details on data access.
Typically a high level driver is available to aid in control of the module. Refer to the software
driver documentation for instructions on using the driver.
4.1 FIFO STRUCTURE
The FIFO (First-In-First-Out) structure allows multiple writes to the module to be stacked-up.
This helps reduce interrupt overhead by allowing an interrupt only after the completion of the last
relay operation in a sequence of up to eight operations. Eight was chosen because it allows at
least one open and one close to each of the four relay rows, allowing a complete change of all
relay states.
If the M-Module is enabled to interrupt, it asserts the INT line on the M-Module interface to the
Carrier when the last commanded relay operation in the FIFO has completed. For example, if
relays in only one row were instructed to move, the module asserts an interrupt after that one row
has been driven. If four rows were instructed to move (four writes to the FIFO--see note below),
then the module asserts an interrupt only after the completionof the fourth operation.
Note:The module asserts an interrupt after the relay drive time is complete (relay drive timer) and no
other operations have been stored in FIFO. The above example assumes the four writes are stored in
FIFO one after the other with very little time between the writes. If, in the above example, the
amount of time between writes is greater than the relay drive time (8 ms), the module would
actually interrupt four times--one interrupt after driving each relay.
4.2 RELAY SET/RESET
When the FIFO is empty (no relay operations pending) bits 03, 02, 01, and 00 in the above
registers indicate the state of the corresponding relay. Logic “1” means the relay in Row n
Column n is closed or soon will be (depending on the FIFO Empty Status bit’s state). Logic “0”
means the corresponding relay is open. Following are some general notes on relay operation:
1. Writing to a Row n Set register closes the relays only in the bit positions set to logic
“1.” Writing logic “0” to a Row n Set register has no effect on relay position. Writing
to a Row n Reset register opens relays only for the bit positions set to logic “0.”
Writing logic “1” to a Row n Reset register has no effect on relay position.
2. Reading either the Row n Set or Row n Reset register addresses returns identical data
because they are actually mapped to the same register. When you write to one ofthese
registers (and FIFO is not full), the data is stored in the register and stored in FIFO.
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