VersaLogic VL-EPMs-U1 User manual

Reference
Manual
DOC. REV. 4/9/2013
VL-EPMs-U1
SUMIT-ISM™Serial
Communications + GPS Module

VL-EPMs-U1 Reference Manual ii
WWW.VERSALOGIC.COM
12100 SW Tualatin Road
Tualatin, OR 97062-7341
[phone]
Fax [phone]
Copyright © 2013 VersaLogic Corp. All rights reserved.
Notice:
Although every effort has been made to ensure this document is error-free, VersaLogic makes no
representations or warranties with respect to this product and specifically disclaims any implied warranties
of merchantability or fitness for any particular purpose.
VersaLogic reserves the right to revise this product and associated documentation at any time without
obligation to notify anyone of such changes.
PC/104 and the PC/104 logo are trademarks of the PC/104 Consortium. SUMIT, ISM, SUMIT-ISM, and the
SUMIT logo are trademarks of the Small Form Factor Special Interest Group (SFF-SIG). All other product
names and trademarks, registered trademarks, or service marks are property of their respective owners.

VL-EPMs-U1 Reference Manual iii
Product Release Notes
Rev 1.00 –Commercial Release.
Support Page
The VL-EPMs-U1 support page, at http://www.versalogic.com/private/epmsu1support.asp, contains
additional information and resources for this product including:
Reference Manual (PDF format)
Device drivers
Datasheets and manufacturers’ links for chips used in this product
Photograph of the circuit board
BIOS information and upgrades
Utility routines and benchmark software
This is a private page for VL-EPMs-U1 users that can be accessed only by entering this URL address
directly. It cannot be reached from the VersaLogic public website.
The VersaTech KnowledgeBase is an invaluable resource for resolving technical issues with your
VersaLogic product.
VersaTech KnowledgeBase

VL-EPMs-U1 Reference Manual iv
Contents
Introduction ...................................................................................................................1
Features...............................................................................................................................1
Technical Specifications.....................................................................................................2
Block Diagram....................................................................................................................3
RoHS-Compliance..............................................................................................................4
About RoHS...........................................................................................................4
Warnings.............................................................................................................................4
Electrostatic Discharge..........................................................................................4
Technical Support...............................................................................................................5
Repair Service........................................................................................................5
Physical Description.....................................................................................................6
Dimensions and Mounting..................................................................................................6
Hardware Assembly...............................................................................................8
Stacking Restrictions.............................................................................................9
External Connectors ......................................................................................................... 10
VL-EPMs-U1 Connectors.................................................................................... 10
VL-EPMs-U1 Connector Functions and Interface Cables ..................................11
Jumper Blocks ..................................................................................................................12
Jumpers As-shipped Configuration .....................................................................12
Jumper Summary.................................................................................................13
Operation.....................................................................................................................14
Serial Ports........................................................................................................................14
Serial Port Connectors.........................................................................................15
GPS and Antenna..............................................................................................................18
Antenna Connector (J5).......................................................................................18
Battery Back-up...................................................................................................18
Coordinate Systems .............................................................................................20
Performance Characteristics................................................................................21
Start-up ................................................................................................................22
SUMIT-A Top Connector (J6) .........................................................................................23
SUMIT-B Top Connector (J7)..........................................................................................24
PC/104 (ISA) Connector (J10) .........................................................................................25
SUMIT-B Bottom Connector (J11)..................................................................................25
SUMIT-A Bottom Connector (J12)..................................................................................26
Appendix A –References............................................................................................27

VL-EPMs-U1 Reference Manual 1
Introduction
Features
The VL-EPMs-U1 is an embedded serial communications module with global positioning system
(GPS) capability. Based on the SUMIT-ISM form factor, the VL-EPMs-U1 supports SUMIT and
PC/104 stackable expansion buses on a 95 mm x 96 mm (3.76” x 3.78”) footprint.
Configurations and feature sets include:
Model
Availability
Serial
Channels
GPS
Connectors
VL-EPMs-U1A
Standard
4
No
SUMIT-A
VL-EPMs-U1B
Standard
6
No
SUMIT-A
VL-EPMs-U1C
Standard
4
No
SUMIT-AB + ISA
VL-EPMs-U1D
Special Order
6
No
SUMIT-AB + ISA
VL-EPMs-U1E
Standard
2*
Yes
SUMIT-A
VL-EPMs-U1F
Special Order
4*
Yes
SUMIT-A
VL-EPMs-U1G
Special Order
2*
Yes
SUMIT-AB + ISA
VL-EPMs-U1H
Special Order
4*
Yes
SUMIT-AB + ISA
* Indicates the number of serial channels available for user I/O. The two serial channels
(COM3-4) dedicated to the GPS interface are not included in this number.
All boards include the following features:
Transient Voltage Suppression
(TVS) devices on I/O interfaces
for protection against power
spikes and surges
Designed to provide -40° to
+85°C operation for reliable use
in harsh environments
Full compliance with EU Directive
2002/95/EC (RoHS) for devices used in
Europe
SUMIT-ISM (Legacy Type 1) form factor
The VL-EPMs-U1 features high-reliability design and construction. All VL-EPMs-U1 boards are
subjected to functional testing and are backed by a limited two-year warranty. Careful parts
sourcing and US-based technical support ensure the highest possible quality, reliability, service,
and product longevity for this exceptional board.
1

Introduction
VL-EPMs-U1 Reference Manual 2
Technical Specifications
Board Size:
ISM™/PC/104™standard:
90 mm x 96 mm (3.55” x 3.78”)
Power Requirements:
+5V @ 140 mA (700 mW)
Stackable Bus:
SUMIT: SUMIT-A, SUMIT-B*
PC/104*: ISA (pass-through only)
Operating Temperature:
-40° to +85°C
Storage Temperature:
-40° to +85°C
Airflow Requirements:
Free air from -40° to +85°C
COM1/COM2:
RS-232, 16C550A compatible, 115 Kbps, full
handshaking to support DB-9 connector
(TVS protected)
COM3/COM4:
RS-232/422/485, 16C550A compatible, 460
Kbps. 4-line RS-232: Tx/Rx Data and
CTS/RTS. TVS protected. Consumed by
GPS module in GPS versions.
COM5/COM6:
RS-232/422/485, 16C550A compatible, 460
Kbps. 4-line RS-232: Tx/Rx Data and
CTS/RTS. TVS protected.
GPS*: Trimble® Lassen®iQ GPS module
- 12-channel GPS functionality
- Supports NMEA 0183, TSIP, TAIP, and
DGPS protocols
- Consumes COM3 and COM4
- Battery-backed almanac (estimated
power-off battery life 10 yrs)
Weight: VL-EPMs-U1A –0.041 kg (0.088 lb)
VL-EPMs-U1B –0.043 kg (0.096 lb)
VL-EPMs-U1C –0.066 kg (0.146 lb)
VL-EPMs-U1E –0.054 kg (0.120 lb)
SUMIT Resources
Form Factor: SUMIT-ISM (Legacy Type 1)
SUMIT
A
SUMIT
B*
PCIe x1
–
–
PCIe x4
–
USB
–
ExpressCard
–
LPC
1
SPI / µWire
–
SMBus / I2C
–
+12V
–
+5V


+5Vsb
–
–
+3.3V
–
–
* Optional
Data represents standard operation at +25°C with +5V supply unless otherwise noted.
Specifications are subject to change without notification.

Introduction
VL-EPMs-U1 Reference Manual 3
Block Diagram
Figure 1. VL-EPMs-U1 Block Diagram
SUMIT
Connectors
SCH3114
or
SCH3116
Super I/O
COM1
RS-232
COM2
RS-232
COM3
RS-232/422/485
COM6
RS-232/422/485
COM4
RS-232/422/485
COM5
RS-232/422/485
GPS Module Header

Introduction
VL-EPMs-U1 Reference Manual 4
RoHS-Compliance
The VL-EPMs-U1 is RoHS-compliant.
ABOUT ROHS
In 2003, the European Union issued Directive 2002/95/EC regarding the Restriction of the use of
certain Hazardous Substances (RoHS) in electrical and electronic equipment.
The RoHS directive requires producers of electrical and electronic equipment to reduce to
acceptable levels the presence of six environmentally sensitive substances: lead, mercury,
cadmium, hexavalent chromium, and the presence of polybrominated biphenyls (PBB) and
polybrominated diphenyl ethers (PBDE) flame retardants, in certain electrical and electronic
products sold in the European Union (EU) beginning July 1, 2006.
VersaLogic Corp. is committed to supporting customers with high-quality products and services
meeting the European Union’s RoHS directive.
Warnings
ELECTROSTATIC DISCHARGE
Electrostatic discharge (ESD) can damage boards, disk drives, and other components. The circuit
board must only be handled at an ESD protective workstation. If an approved station is not
available, some measure of protection can be provided by wearing a grounded antistatic wrist
strap. Keep all plastic away from the board. Do not slide the board over any surface.
After removing the board from its protective wrapper, place the board on a grounded, static-free
surface, component side up. Use an antistatic foam pad if available.
The board should always be protected inside a closed metallic antistatic envelope during
shipment or storage.

Introduction
VL-EPMs-U1 Reference Manual 5
Technical Support
If you are unable to solve a problem after reading this manual, please visit the VL-EPMs-U1
product support web page (see below). The support page provides links to component datasheets
and device drivers.
The VersaTech KnowledgeBase contains a wealth of technical information about VersaLogic
products, along with product advisories. Click the link below to see all KnowledgeBase articles
related to the VL-EPMs-U1.
If you have further questions, contact VersaLogic Technical Support at [phone].
VersaLogic support engineers are also available via e-mail at [e-mail].
REPAIR SERVICE
If your product requires service, you must obtain a Returned Material Authorization (RMA)
number by calling [phone].
Please provide the following information:
Your name, the name of your company, your phone number, and your e-mail address
The name of a technical contact if any questions arise
Quantity of items being returned
The model and serial number (barcode) of each item
A detailed description of the problem
Steps you have taken to resolve or recreate the problem
The return shipping address
Warranty Repair All parts and labor charges are covered, including return shipping
charges for UPS Ground delivery to United States addresses.
Non-warranty Repair All non-warranty repairs are subject to diagnosis and labor charges,
parts charges, and return shipping fees. Please specify the shipping
method you prefer and provide a purchase order number for invoicing
the repair.
Note Please mark the RMA number clearly on the outside of the box before
returning. Failure to do so can delay the processing of your return.
VL-EPMs-U1 Support Page
http://www.versalogic.com/private/epmsu1support.asp
VersaTech KnowledgeBase

VL-EPMs-U1 Reference Manual 6
Physical Description
Dimensions and Mounting
The VL-EPMs-U1 complies with SUMIT-ISM (Legacy Type 1) form factor, which provides for
specific mounting hole and stackable bus locations as shown in the diagram below.
Figure 2. VL-EPMs-U1 Dimensions and Mounting Holes
(Not to scale. All dimensions in inches.)
Caution The board must be supported at all four mounting points to prevent excessive
flexing when expansion modules are mated and detached. Flex damage caused by
excessive force on an improperly mounted circuit board is not covered under the
product warranty.
2
–0.200
0.000
3.150 3.350
0.150
0.000
-0.200
3.575
3.375
3.050
0.125 DIA x4
Use 3mm or #4
standoffs
+
+
+
+

Physical Description
VL-EPMs-U1 Reference Manual 7
Figure 3. VL-EPMs-U1x Height Dimensions
(Not to scale. All dimensions in inches.)
Note Not all connectors are present on all models.
0.44
0.43
0.06
0.38
0.36
PC/104 (ISA)
Connector
SUMIT
Connectors
Serial Port
Connectors
GPS Antenna
Connector
0.39

Physical Description
VL-EPMs-U1 Reference Manual 8
HARDWARE ASSEMBLY
The VL-EPMs-U1 comes in a variety of configurations that use SUMIT-A only, SUMIT-A and
SUMIT-B, and PC/104 (ISA) connectors. The module can be added to the middle or top of the
stack, above any SUMIT boards and below any PC/104 boards.
The entire assembly can sit on a table top or be secured to a base plate. When bolting the unit
down, make sure to secure all four standoffs to the mounting surface to prevent circuit board
flexing. Standoffs are secured to the top circuit board using four pan head screws. Standoffs and
screws are available (VL-HDW-105/VL-HDW-106). Note that the standoffs in this kit are 15.24
mm (0.6") and must not be mixed with 15 mm (0.59") standoffs (VL-HDW-100/VL-HDW-101).
An extractor tool is available (part number VL-HDW-201) to separate modules from the stack.
Use caution when using the extractor tool so as not to damage any board components.
Figure 4. Stacking Example

Physical Description
VL-EPMs-U1 Reference Manual 9
STACKING RESTRICTIONS
The VL-EPMs-U1 can be used with any SUMIT-enabled VersaLogic CPU board, though some
restrictions apply, as described below.
VL-EPMs-21 and VL-EPICs-36 Restrictions
The following restrictions apply when using the VL-EPMs-21 or VL-EPICs-36:
A maximum of two VL-EPMs-U1 boards are supported in the stack.
When two VL-EPMs-U1 boards are in the stack, one must be configured with a base
address of 0x4E. The other board must be configured to 0x162E or 0x164E. Address
0x2E is reserved for the CPU board's Super I/O.
I/O base address availability is limited. Generally, each base address option is port
specific. Eighteen I/O base addresses are available to all ports, but address options for a
particular port are limited to three.
Interrupts can be shared among serial ports on the same VL-EPMs-U1 board, but not
shared among serial ports on different boards (that is, serial ports originating from
different super I/O chips).
The serial ports on the VL-EPMs-U1 must be added manually in Windows using the Add
Hardware Wizard and the Device Manager. The module is not plug-and-play.
BIOS console redirection to VL-EPMs-U1 serial ports cannot be activated using the
Ctrl-C keyboard combination. However, the OS can redirect the console to VL-EPMs-
U1 ports.
Additional VL-EPICs-36 Restrictions
The following restrictions pertain to the VL-EPICs-36 only:
A maximum of three I/O ranges can be allocated to VL-EPMs-U1 serial ports. You
should configure the ports to use contiguous I/O space to best utilize these decode
ranges. The following base addresses are exempt from this restriction: 3F8, 2F8, 208,
and 200.
Including on-board serial ports, a maximum of 16 ports can be configured. The system
will display a warning if the BIOS cannot allocate enough I/O space.

Physical Description
VL-EPMs-U1 Reference Manual 10
External Connectors
VL-EPMS-U1 CONNECTORS
Figure 5. VL-EPMs-U1 Connectors –Top Side
J6 –SUMIT-A
All models
J7 –SUMIT-B
Models C, D, G, H
J10 –PC/104 (ISA)
Models C, D, G, H
J8 –GPS
GPS Models
J5 –Antenna
GPS Models
J3 –COM5-6
Models
B, D, F, H
J2 –COM3-4
Models A, B, C, D
J4 –COM1-2
All Models
J9 –GPS to
Antenna
GPS Models
Battery

Physical Description
VL-EPMs-U1 Reference Manual 11
VL-EPMS-U1 CONNECTOR FUNCTIONS AND INTERFACE CABLES
The following table notes the function of each connector, as well as mating connectors and
cables, and the page where a detailed pinout or further information is available.
Table 1: Connector Functions and Interface Cables
Connector
Function
Mating Connector
Transition
Cable
Cable Description
Pin 1 Location1
x coord. y coord.
Page
J1
Not installed
—
—
—
0.614
3.401
—
J2
COM3/4
3M 89120-0101
VL-CBR-2001
12" 20-pin socket to
two DB-9
3.099
2.969
16
J3
COM5/6
3M 89120-0101
VL-CBR-2001
12" 20-pin socket to
two DB-9M
0.047
1.723
17
J4
COM1/2
3M 89120-0101
VL-CBR-2001
12"' 20-pin socket to
two DB-9M
3.099
1.513
15
J5
GPS Antenna
SubMiniature A (SMA)
male
VL-CBR-ANT02
5m Trimble antenna
—
—
18
J6
SUMIT-A (Top)
Samtec ASP-129646-01
—
—
2.712
3.322
23
J7
SUMIT-B (Top)
Samtec ASP-129646-01
—
—
1.669
3.322
24
J8
GPS header
—
—
(GPS)
—
—
18
J9
GPS to Antenna
—
—
(Supplied with GPS)
—
—
18
J10
PC/104 ISA
AMP 1375795-2
—
—
0.050
0.200
25
J11
SUMIT-B (Bottom)
Samtec ASP-129637-01
—
—
1.669
3.317
25
J12
SUMIT-A (Bottom)
Samtec ASP-129637-01
—
—
2.712
3.317
26
1. The PCB origin is the center of the mounting hole located in the lower left, as oriented in Figure 5.

Physical Description
VL-EPMs-U1 Reference Manual 12
Jumper Blocks
JUMPERS AS-SHIPPED CONFIGURATION
Figure 6. As-shipped Jumper Configuration
1 2
V4
V5
V3
1
2
1 2 3
2 1
1 2 3
V2
V1
3 4
4 3
(Model E)
(Model B)
(Models A, B, C)
(All models)
(All models)
Jumper headers are
present only on the
standard VL-EPMs-U1
models indicated here.

Physical Description
VL-EPMs-U1 Reference Manual 13
JUMPER SUMMARY
Not all jumper headers are present on all standard VL-EPMs-U1 models (A, B, C, and E), as
indicated in the Jumper Summary table.
Table 2: Jumper Summary
Jumper
Block
Description
As
Shipped
Page
V1[1-2]
GPS Backup power. This jumper header is installed on the VL-
EPMs-U1B and E only.
In –GPS almanac backup power is connected
Out –GPS almanac backup power is not connected
Either through an installed lithium battery or external power source
via J1, backup power can optionally be supplied to the GPS unit to
maintain its almanac, ephemeris, and last position for faster initial
position fixes upon system power up (10 seconds typical).
In
(Model E
only)
—
V2[1-2]
COM5 RS-422/485 Termination Resistor. This jumper header is
installed on the VL-EPMs-U1B only.
In –COM5 terminated
Out –No termination
Installing a jumper places a 120 ohm terminating resistor across the
COM5 RxD+/RxD- differential pair.
In
(Model B
only)
17
V2[3-4]
COM6 RS-422/485 Termination Resistor. This jumper header is
installed on the VL-EPMs-U1B only.
In –COM6 terminated
Out –No termination
Installing a jumper places a 120 ohm terminating resistor across the
COM6 RxD+/RxD- differential pair.
In
(Model B
only)
17
V3[1-2]
COM3 RS-422/485 Termination Resistor. This jumper header is
installed on the VL-EPMs-U1A, B, and C only.
In –COM3 terminated
Out –No termination
Installing a jumper places a 120 ohm terminating resistor across the
COM3 RxD+/RxD- differential pair.
In
(Models A, B,
and C only)
16
V3[3-4]
COM4 RS-422/485 Termination Resistor. This jumper header is
installed on the VL-EPMs-U1A, B, and C only.
In –COM4 terminated
Out –No termination
Installing a jumper places a 120 ohm terminating resistor across the
COM4 RxD+/RxD- differential pair.
In
(Models A, B,
and C only)
16
V4-V5
Super I/O Base Address Selector. These jumper headers are
installed on all VL-EPMs-U1 models.
SIO Base
Address V4 V5
0x2E 2-3 1-2
0x4E 1-2 1-2
0x162E 2-3 2-3
0x164E 1-2 2-3
Selects the base address of the board.
0x4E
V4[1-2]
V5[1-2]
(All models)
—

VL-EPMs-U1 Reference Manual 14
Operation
Serial Ports
The VL-EPMs-U1 can be configured with up to six serial ports, COM1-6, depending on the
model. The table below describes serial port configurations.
Table 3: Serial Port Configurations
Port
Type
Connector
Models
COM1/2
RS-232,16C550A compatible, 115 Kbps,
all handshake lines implemented
J4
A, B, C, D,
E, F, G, H
COM3/4
RS-232/422/485,16C550A compatible,
460 Kbps, 4-wire RS-232 (only CTS and
RTS handshaking); consumed by GPS in
GPS-enabled models
J2
A, B, C, D
COM5/6
RS-232/422/485, 16C550A compatible,
460 Kbps, 4-wire RS-232 (only CTS and
RTS handshaking)
J3
B, D, F, H
These connectors are protected against ESD damage.
3

Operation
VL-EPMs-U1 Reference Manual 15
SERIAL PORT CONNECTORS
COM1 and COM2 (J4)
The interface to COM1 and COM2 is provided by connector J4. VL-CBR-2001 connects to J4
and provides two DB-9M connectors. The pinouts for these connectors are shown below.
Table 4: COM1 and COM2 Pinouts
J4 Pin
RS-232
VL-CBR-2001
DB-9 COM1 Pin
1
DCD
1
2
DSR
6
3
RXD#
2
4
RTS
7
5
TXD#
3
6
CTS
8
7
DTR
4
8
RI
9
9
Ground
5
10
NC
—
J4 Pin
RS-232
VL-CBR-2001
DB-9 COM2 Pin
11
DCD
1
12
DSR
6
13
RXD#
2
14
RTS
7
15
TXD#
3
16
CTS
8
17
DTR
4
18
RI
9
19
Ground
5
20
NC
—

Operation
VL-EPMs-U1 Reference Manual 16
COM3 and COM4 (J2)
The interface to COM3 and COM4 is provided by connector J2. VL-CBR-2001 connects to J2
and provides two DB-9M connectors. The pinouts for these connectors are shown below.
Table 5: COM3 and COM4 Pinouts
J2 Pin
RS-232
RS-422
RS-485
VL-CBR-2001
DB-9 COM3 Pin
1
NC
NC
NC
1
2
NC
NC
NC
6
3
RXD#
RxD–
RxD–
2
4
RTS
TxD+
TxD+
7
5
TXD#
TxD–
TxD–
3
6
CTS
RxD+
RxD+
8
7
+5V pull-up
+5V pull-up
+5V pull-up
4
8
NC
NC
NC
9
9
Ground
Ground
Ground
5
10
NC
NC
NC
—
J2 Pin
RS-232
RS-422
RS-485
VL-CBR-2001
DB-9 COM4 Pin
11
NC
NC
NC
1
12
NC
NC
NC
6
13
RxD#
RxD–
RxD–
2
14
RTS
TxD+
TxD+
7
15
TxD#
TxD–
TxD–
3
16
CTS
RxD+
RxD+
8
17
+5V pull-up
+5V pull-up
+5V pull-up
4
18
NC
NC
NC
9
19
Ground
Ground
Ground
5
20
NC
NC
NC
—
Note: In full-duplex RS-485 operation the four signals [TxD+/TxD–] and [RxD+/RxD–] must be
externally connected together by the user to form a single differential pair consisting of
[TxD/RxD+] and [TxD/RxD–].