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iii
DOCUMENT REVISION NOTICE
C&H Technologies, Inc. makes every attempt to provide up-to-date manuals with the associated
equipment. Occasionally, throughout the life of an instrument, changes are deemed necessary to
equipment related documentation. The latest revision of our documentation is available for
download from our web site at http://www.chtech.com
.
NOTE
The contents of any amendment may affect operation,
maintenance, or calibration of the equipment.
iv
INTRODUCTION
This manual describes the operation and use of the C&H Model EM405D Ethernet M-Module
Carrier (Part Number 11028850). This instrument is one of a number of M-module carriers
provided by C&H.
Contained within this manual are the physical and electrical specifications, installation and
startup procedures, functional description, and c onfiguration and programming guidelines to
adequately use the product.
Software drivers for an installed M/MA module may b e provided by the M/MA module
manufacturer. Some drivers may require modification to operate correctly with the
communication protocol and the addressing methodology used by the EM405D. To support
initial operation and application software development, C&H provides a software application
called Interactive Mezzanine Control (IMC). The application provides immediate access and
control of any M/MA module residing on an EM405D. IMC can be downloaded from the
support section of C&H’s website www.chtech.com
.
v
TABLE OF CONTENTS
1.0 GENERAL DESCRIPTION............................................................................................ 1
1.1 PURPOSE OF EQUIPMENT............................................................................................. 1
1.2 FEATURES AND SPECIFICATIONS..............................................................................1
1.2.1 Key Features ................................................................................................................ 1
The EM405D Ethernet M-Module carrier provides complete Ethernet connectivity to up to two
industry standard single-wide or one double-wide M or MA modules. The carrier provides full
access to the M/MA module I/O space via the standard TCP/IP networking protocol. M-module
triggers are also fully supported allowing them to be connected externally to a 9-pin DSUB
connector or to an adjacent M-module. A simple command structure eases software integration
and allows reset, identification, control, and configuration of the carrier and M-modules. For a
complete list of M-modules compatible with the EM405D carrier, visit the mezzanine section of
www.mezzanines.org, or www.vita.com.
Figure 1. EM405D Ethernet M-Module Carrier
1.1 PURPOSE OF EQUIPMENT
The EM405 easily interfaces a VITA 12-199x standard M/MA Module to a typical Ethernet
network. The carrier allows the numerous functions available in the M-Module mezzanine
format to be remotely located near the unit-under-test, easing many system integration issues.
Over 100 M/MA modules are available from numerous manufacturers.
1.2 FEATURES AND SPECIFICATIONS
1.2.1 Key Features
Supports two ANSI/VITA 12-1996 compliant single-wide M or MA-modules or one
double-wide module
Ethernet 10Base-T, 100Base-TX (Auto-Sensing) or Wi-Fi 802.11b
Rugged steel/aluminum enclosure (5.6"W 8.5"D 1.5"H)
+12V power input through standard 2.5mm jack or 9-pin DSUB
Variable speed forced air cooling with software temperature status
D16 M-module accesses supported
Flexible block access command provides rapid sequential and FIFO data accesses
External trigger input/output and inter-module triggers supported
Isolated and filtered +5V, +12V, and -12V supplies for each M-module
Interactive Mezzanine Control (IMC) software available
1
1.2.2Specifications
MAXIMUM RATINGS
Parameter Condition Rating Units
Operating Temperature 0 to +60
Non-Operating Temperature -40 to +75
Humidity non-condensing 5 to 95 %
Input DC Power Level 12.6 V max.
Power Consumption Support for two M-modules at full power 30 Watts
External Trigger Input Power Off
CHARACTERISTICS
Limit
Parameter Conditions Min Typ. Max Units
Data Transfers
Throughput Wired Ethernet – block read
Input Power Supply
Level DC 11.4 12.0 12.6 V
Current for full M-module support 2.5 A
Ripple/noise 20MHz bandwidth -1.5 +1.5 %
Power Consumption
Ca rrier -0001 wired Ethernet
M-modules (each position) +5V
Triggers
Output Level into a high impedance load 3.8 5.0 5.4 V
Output Impedance 50 Input Level TLVL = 0 4
Input Impedance TIMP = 0 4
External Trigger Delay External connector to M-module
Cooling
Temperature Rise 20 °C
Temperature Accuracy -2 +2 °C
Notes:
1. 12-24ms latency occurs on each command issued. The effect of this latency is reduced by transferring
large amounts of data with a single block read command. Maximum read throughput is achieved by
reading >64K bytes of data from a FIFO type register on an M-module using the Block Read
command. Host software may vary and can limit the maximum throughput.
2. The maximum number of bytes that can be written in a single block write command is 1024.
3. Ethernet is a non-deterministic communications interface. Realized throughput may be significantly
degraded by network activity or other factors that may affect network performance.
4. TLVL and TIMP refer to register bits in the Reset & Trigger Control register. Refer to section 4.3.5.
M-module to external connector
M-module to M-module
2, 3
C
C
± 40
± 36
1, 3
2, 3
90K
460
500
100K
470
510
1.0
2.5
1.4
50
30
30
30
40K
23K
14K
550
590
200
200
V
40
40
40
V
V
bytes/sec
bytes/sec
bytes/sec
bytes/sec
mA
mA
A
mA
mA
V
ns
ns
ns
2
1.3 Electrical
The EM405D only requires a +12V DC power input. The +12V input is internally converted to
the +3.3V power required by the carrier and the +5V, +12V, and -12V power required by the Mmodules. A maximum of 30 watts is required to support the carrier and two M-modules
operating at the maximum allowed power consumption. The maximum allowed power
consumption for each M-module is 1A of +5V and 200ma each of +12V and -12V. The
EM405D uses power-off resetable fuses on the incoming +12V supply. If a fault occurs, power
must be removed before the fuse will reset. The fuse is rated at 5 amps.
1.4 Mechanical
The EM405D is contained in a metal chassis with an outside dimension of 5.6 inches wide by 8.5
inches deep by 1.5 inches high. A variable speed fan provides forced air for cooling the Mmodules. The unit weighs approximately 1.7 lbs with no M-modules installed.
1.5 Environmental
The environmental specifications of the module are:
Operating Temperature: 0C to +60C*
Storage Temperature: -40C to +75C
Humidity: <95% without condensation
* The forced air cooling is designed to allow a maximum 20C temperature rise for installed M-
modules. In other words, with two M-modules operating at full dissipation, the M-modules’
temperature can only be maintained within 20C of the ambient air inlet temperature.
Installed M/MAs may differ in environmental specification. Refer to each individual M/MA’s
documentation for information.
1.6 Bus Compliance
The module complies with the ANSI/VITA 12-1996 Specification for single or double-wide MModules and the MA-Module trigger signal extension.
Addressing: A08 only (extended addressing not supported)
Data: D16 only
Interrupts: not supported
DMA: not supported
Triggers: Trig A and Trig B Input/Output
Manufacturer ID: 0FC116
Model Number: 0FDB16
3
1.7 APPLICABLE DOCUMENTS
ANSI/VITA 12-1996 American National Standard for The Mezzanine Concept M-
Module Specification, Approved May 20, 1997, VMEbus
International Trade Association, 7825 E. Gelding Dr. Suite 104,
Scottsdale, AZ 85260-3415, E-mail: info@vita.com,
www.vita.com
IEEE-802.3 (ANSI 8802.3), Ethernet Network Standard
IEEE-802.11b, Wireless Ethernet Standard
4
2.0 INSTALLATION
M/MA-Module
Carrier
A B C
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 carrier immediately as well as to C&H. If there is no damage
to the shipping container, carefully remove the instrument from its box and inspect for any signs
of physical damage. If damage exists, report immediately to C&H.
2.2 HANDLING PRECAUTIONS
The components used in the EM405D are static sensitive. Damage may occur if proper static
precautions are not taken. Installation of M-modules should only be done at a properly grounded
static free workstation.
CAUTION: Read the entire User's Manual before proceeding with the
installation and application of power.
2.3 INSTALLATION OF M-MODULES
To install modules, first remove power from the carrier. Remove the front panel cover by
removing the two screws located at the sides of the panel. Do not remove the screws located on
the bottom of the enclosure. Slide the PCB out of enclosure. Install M-modules by firmly
pressing the connector on the M-module together with the connector on the carrier as shown in
Figure 2. Secure the module through the holes in the PCB using screws provided with the Mmodule.
WARNING: The EM405D supports M-modules that use two or three row
interface connectors. When using M-modules with only two
rows, row C of connector (rear row) is left unconnected.
Figure 2. M-module Installation
5
There are two M-module mounting locations on the EM405D. Single-wide M-modules may be
TMP
CPLD
PWR
CNV
uC
CPLD
DSUB
CAP
CAP
CAP
ETHERNET
uC
OSC
BUF
BUF
BUF
SIG
FUSE
FUSE
LED
POWER
FAN
SWITCH
MODULE A
MODULE B
installed in either or both of the positions. A double-wide M-module will occupy both positions.
The EM405D configuration is illustrated in Figure 3.
Figure 3. M/MA Configuration Diagram
CAUTION: M-module connectors are NOT keyed. Use extra caution to
avoid misalignment. Applying power to a misaligned module
can damage the M-module and carrier.
Re-assemble the EM405D by first sliding the carrier into the enclosure. Be careful to align the
edges of the carrier with the guide rails of the enclosure. Improper alignment will cause the back
panel component to not align with the back panel cutouts. Slide the carrier all the way into the
enclosure and re-affix the front panel using the two screw holes located at the sides of the panels.
6
3.0 FUNCTIONAL DESCRIPTION
ETHERNET
MICRO
M-MODULE
INTERFACE
POWER
CONVERSION
POSITION A
POSITION B
+12VDC IN
M-MODULE A
M-MODULE B
TRIGGERS
OR
HERE
TRG IN
TRG OUT
10/100 BASE-T
OR WI-FI
9-PIN DSUB
3.1 GENERAL
The EM405D provides a mechanical and electrical interface between an Ethernet bus and up to
two M-modules. It utilizes an embedded microcontroller to provide buffering and command
translation between the Ethernet interface and the M-modules. A simplified functional block
diagram is shown in Figure 4.
Figure 4. Functional Block Diagram
3.1.1 Embedded Controller
The embedded controller is implemented using a high-performance microcontroller. The
microcontroller executes system firmware that controls the translation between Ethernet and the
M-module interface. The s ystem firmware implements a s imple command protocol that allows
access to the M-modules I/O space, trigger mapping and carrier information a nd status. It also
provides data buffering and fan control.
3.1.2 Ethernet Interface
The Ethernet interface provides the physical and logical connection to the EM405D allowing
remote control of the M-modules. The EM405D is available with either wired 10/100 Base-T
Ethernet or wireless Ethernet (Wi-Fi). The interface supports the TPC/IP protocol for control of
the M-modules. It also supports DHCP, AutoIP, Telnet, HTTP and other standard protocols for
device configuration and management.
7
3.1.3 M-module Interface
ETHERNET
10/100 BASE-T
+12VDC
IN
J1
POWER
ON
OFF
The M-module interface provides the mechanism for the microcontroller to access the Mmodules. It is implemented using programmable logic that emulates a bridge between the
microcontroller and the M-module bus. The logic also provides trigger configuration and
control.
3.1.4 Power Conversion
The +12V input power is converted to the +3.3V power required by the carrier and the +5V,
+12V, and -12V power required by the M-modules. The input p ower can be supplied through
the 2.5mm power jack connector or through pins on the 9-pin DSUB connector.
3.2 REAR PANEL
The rear panel of the EM405D contains a +12V power input connection, an Ethernet connection
or wireless antenna and a 9-pin DSUB connector that provides connection to M-module trigger
lines and an alternate power input connection. Also found on the rear panel are the fan and an
On/Off switch. Figure 5 shows the rear panel of the module. Refer to Appendix A for pin-out
details of the 9-pin DSUB connector.
Figure 5. Rear Panel
8
3.3 FRONT PANEL
B
A
EM405D ETHERNET M-MODULE CARRIER
PWR
The front panel of the EM405D contains two openings for access to the M-modules’ front panel
connections and three LED indicators as shown in Figure 6. As mandated by the M-module
specification, each M-module should provide a front panel connector c ontaining the M-module
I/O signals. The two openings on the EM405D’s front panel provide access to these connectors.
The functions of the three front-panel LED indicators are:
PWR: indicates that power is supplied to the module and that the power switch is ON. The units
should be operating normally.
A, B: indicates that M-module A or B is currently being accessed. The LED will illuminate
temporarily each time the module is accessed by the host software.
Figure 6. Front Panel
9
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