Reference
Manual
DOC. REV. 4/9/2013
VL-EPMs-U1
SUMIT-ISM™ Serial
Communications + GPS Module
WWW.VERSALOGIC.COM
12100 SW Tualatin Road
Tualatin, OR 97062-7341
(503) 747-2261
Fax (971) 224-4708
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
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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
iii
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
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Introduction
Features
1
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:
Serial
Channels
4
6
4
6
2*
4*
2*
4*
Model
VL-EPMs-U1A
VL-EPMs-U1B
VL-EPMs-U1C
VL-EPMs-U1D
VL-EPMs-U1E
VL-EPMs-U1F
VL-EPMs-U1G
VL-EPMs-U1H
Availability
Standard
Standard
Standard
Special Order
Standard
Special Order
Special Order
Special Order
GPS
No
No
No
No
Yes
Yes
Yes
Yes
Connectors
SUMIT-A
SUMIT-A
SUMIT-AB + ISA
SUMIT-AB + ISA
SUMIT-A
SUMIT-A
SUMIT-AB + ISA
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.
VL-EPMs-U1 Reference Manual
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