Mars Titan CPU User manual

Titan CPU
Channel Multiplexer
CPU04 / CPU08 / CPU12
User Manual

2
Titan CPU Channel Mul plexer
Titan CPU User Manual v1.1
Publica on MNL 1057
October 2020
This informa on is furnished for installa on, opera on, test and maintenance purposes.
The informa on is proprietary in nature and should be treated accordingly. The data shall
not be released or used, duplicated or disclosed, in whole or in part, for manufacture or
procurement without the wri en permission of Mars Labs.
Proprietary No ce
This Technical Manual is copyright © 2020. All rights reserved. Brief excerpts may be
made from this manual for technical purposes, as long as they are referenced.
Although this manual is believed to be correct at the  me of publica on, Mars Labs, its
employees, or agents involved in the prepara on and publica on of this manual do not
accept any form of liability for its contents or any consequences arising from its use.
People using the informa on contained in this manual should apply, and rely upon, their
own skill and judgement to a par cular issue which they are considering.
Copyright
Mars Labs, LLC
29 C Street
Laurel, Maryland 20707
[phone]
www.marslabs.com

3
Titan CPU Channel Mul plexer
Table of Contents
Furnished Accessories .......................................................................................
Support ............................................................................................................
General Guidelines ..........................................................................................
Introduc on
Opera on
Interface
Connec ons
Front Panel .......................................................................................................
Rear Panel ........................................................................................................
Connec on Diagram .......................................................................................
REM (Remote) ...............................................................................................
Titan Input Module Ports .................................................................................
......................................................................................................
4
4
5
6
8
9
10
11
12
Features & Specifi ca ons 15
Warranty & Repair ........................................................................................ 17
Changing the IP Address
LED Opera on ............................................................................................. 14
Notes & Known Issues ............................................................................... 18
Remote Switch Opera on ............................................................................ 14
Rese ng the CPU File Index .................................................................. 16
................................................................................. 13
.............................................................................

4
Titan CPU Channel Mul plexer - Introduc on
The Titan CPU Channel Mul plexers allows you to connect mul ple Titan
Pods or Mini-Recorders to easily confi gure large channel-count test systems
of up to 192 channels, plus digital channels.
Device connec ons to the Titan CPU are made using industry-standard
Ethernet cables, which provide communica on, power, and synchroniza on
on a single cable, simplifying wiring and elimina ng the need for extra
equipment. Data can be recorded directly to an SD memory card or to a host
PC, and network opera on is possible via TCP/IP or UDP.
This manual is intended to provide the user with an overview of the Titan
CPU Channel Mul plexer, with complete features, specifi ca ons, set up
procedures and opera on. It contains important safety informa on as well.
Support for this product is available by contac ng the factory during regular
business hours (9am – 6pm EST) at 301-470-3278. Addi onal informa on can
be found on our web site: h p://www.marslabs.com
Introduc on
Support
The Titan CPU is typically shipped with the following items:
- PS24V6A-SM - 24V / 6A Titan Power Adapter
- Ethernet cabling (CAT6/CAT5)
Furnished Accessories

5
Titan CPU Channel Mul plexer - Opera on
Electrosta c Discharge
Electrosta c Discharge (ESD) occurs when a sta c charge builds up on either
yourself or the Titan hardware, and then you touch the Titan hardware.
The sta c spark can be so small that you don’t feel it, however, it can fl aw a
semiconductor. These fl aws may generate an immediate failure, or, in most
cases, cause a slight reduc on in performance which will con nue to degrade,
eventually leading to failure of the hardware. When you feel a sta c shock, you
are experiencing a minimum of 3,000 volts of electricity.
Even though the input connectors have protec on to prevent ESD damage,
it is good prac ce to always ground yourself and the Titan hardware while
connec ng and removing sensors.
Always use approved ESD handling procedures to prevent ESD damage.
Grounding Titans
In general, grounding the Titan hardware to the test vehicle or test structure
will usually reduce noise pickup.
All of the analog inputs of the Titan hardware have a return path to ground.
However, it is very important that each sensor have only one return path to
avoid ground loops. When tes ng a vehicle, o en the vehicle chassis and Titan
can have very large ground imbalances of one or two volts. In such situa ons,
ground the sensors to Titan and use diff eren al inputs across the sensor. A
totally fl oa ng input (like a 9-Volt ba ery) must have one side grounded at the
point where used, either grounded to Titan or connected to the vehicle chassis
ground via a resistor (e.g. 10K ohm).
If there is a possibility that a fl oa ng sensor may be occasionally grounded,
install a 10K ohm resistor from the minus input to Titan ground. When the
sensor is fl oa ng, the 10K ohm resistance will reference it to Titan ground,
and when it is grounded, the resistor will allow the direct minus input wire to
reference the remote chassis ground.
Specifi c Warnings
Always connect the Titan Power Adapter to the Titan CPU before applying
power. Never hot plug a Titan CPU under any circumstances as hot plugging
may damage the device!
General Guidelines and Warnings

6
Titan CPU Channel Mul plexer - Opera on
Opera on
Front Panel
This user manual covers CPU04, CPU08, and CPU12 Channel Mul plexers.
Func onal descrip ons of all Titan CPU Channel Mul plexer front and rear
panels appear below.
The Titan CPU front panel incorporates a power connector and switch, LED
status indicators, an Ethernet port, a Programming (PGM) port, and a jack for
remote opera on (REM). The CPU08 and CPU12 include four RJ-45 Input Module
connectors (ports 1-4) with LED group indicators.
CPU04 Front Panel
CPU08 and CPU12 Front Panel

7
Titan CPU Channel Mul plexer - Opera on
LED Status Indicators
R – A red LED indica ng the recording status.
S – A green LED indica ng that the Titan CPU is scanning.
E – A red LED indica ng an error condi on within the Titan CPU.
P – A green LED indica ng that the Titan CPU is ON.
ETHERNET
An RJ-45 port that enables the Titan CPU to operate over an Ethernet
network, or to connect to a PC using an Ethernet crossover cable.
Panel Components
REM
An 1/8” TRS connec on that permits remote Start/Stop recording.
POWER The 4-pin power connector provides the power input of the
Titan CPU Channel Mul plexer.
NOTE: The 24V, 6-amp Power Adapter furnished
with the Titan CPU is sufficient to power the CPU and
approximately eight Input Modules with no excitation.
If using the CPU12 with more than eight modules
connected, or if excitation is to be applied, you will
need to provide additional power either by powering
some Input Modules separately with additional
Titan power adapters or by providing power from
another source. In the latter case, observe the power
connection shown.
For all test configurations, Mars Labs recommends
powering input modules separately to avoid potential
power issues.
PGM
A mini-USB port for communica ng with the device internal processor.
LED Port Indicators (CPU08/CPU12)
Green (P) - When lit, indicates that a four-port group is powered and ac ve.
Red (U) - When lit, indicates that a four-port group is providing power to the
RJ45 ports.

8
Titan CPU Channel Mul plexer - Opera on
Rear Panel
The rear panel on all three Titan CPUs incorporate RJ-45 Input Module
connectors, LED indicators for each four-port group, and a Sync jack.
CPU04 Rear Panel
CPU08 Rear Panel
CPU12 Rear Panel

9
Titan CPU Channel Mul plexer - Opera on
Titan Input Module Ports
Mul ple RJ-45 style ports provide the connec ons for Titan Input Modules.
Any combina on of Titan Mini-Recorders and Pods can be connected to these
ports to provide up to 192 analog channels plus digital channels (CPU12).
Connec ons are made using Ethernet CAT6 cables.
Rear Panel Components
Connec on Diagram
The diagram below depicts a large channel-count data acquisi on system
(192 analog channels, plus digital channels) using a Titan CPU12 and twelve
Titan Input Modules*, one of which includes a Digital Pod. Connec ons
between the CPU and the Titan Input Modules are made using standard
‘straight-through’ CAT6 Ethernet cables. The maximum recommended cable
length from the Mini-Recorder to the CPU is 25 feet (7.6 meters).
SYNC
An 1/8” Tip-Ring-Sleeve (TRS) connec on that allows mul ple CPUs
to be synchronized for large channel-count confi gura ons using a
Titan CPX Expander.
LED Port Indicators
Green (P) - When lit, indicates that a four-port group is powered and ac ve.
Red (U) - When lit, indicates that a four-port group is providing power to the
RJ45 ports.
* When more than eight Titan Input Modules are connected and powered from
the CPU, you will need to provide separate power to the addi onal modules.
See power note on page 7.

10
Titan CPU Channel Mul plexer - Interface
Interface
REM (Remote):
The REM jack permits the Titan CPU recording func on to be started and
stopped by means of an external switch. This func on is implemented on
an 1/8” Tip-Ring-Sleeve (TRS) jack, which provides connec ons for both an
external switch and an LED to indicate the START/STOP status:
Tip - External Switch
Ring - LED
Sleeve - Ground
The CPU will start recording when a switch closure is made between the Tip
and Sleeve contacts. When the switch is in the open posi on, recording will
stop. If an LED is connected between the Ring and Sleeve contacts, it will be
illuminated when the CPU is recording.
Titan Input Module Ports
The Titan CPU has twelve iden cal Titan Input
Module Port connectors. LEDs integrated into
these connectors indicate when a connected
Titan Input Module is transmi ng and receiving
data. Titan Input Modules connect to these
ports using industry-standard ‘straight-through’
Ethernet cabling, which provides power, sync and
data connec ons on a single cable. The maximum
recommended cable length from the Titan CPU to
a Titan Input Module is 25’.
NOTE: When the Remote Switch is ON (i.e. recording) the Remote LED will blink
mostly ON. When the Remote Switch is OFF the Remote LED will blink mostly OFF.
The Remote Switch may be connected at any time. If the Remote Switch is ON when
the connection is made, the CPU will begin recording immediately with the current test
configuration.

11
Titan CPU Channel Mul plexer - Interface
This page inten onally le blank

12
Titan CPU Channel Mul plexer - Connec ons
Connec ons
The Titan CPU can be operated directly from a host PC via a direct Ethernet
connec on or over a local area network connec on.
Via a local arear network (LAN):
1. If your CPU is confi gured with a unique IP address on the same subnet as
your local network, you can simply connect it to your network. To make sure
there are no IP address confl icts, it’s a good idea to ping the address before
connec ng the CPU. To do this, open a command prompt (Start Menu -> Run:
cmd) and enter “ping <ip address>”, and verfi y that the ping is unsuccessful.
If there is a response, then the CPU IP address will need to be changed. For
informa on on changing the CPU IP address, see page 15.
2. Connect the Titan CPU to the network, but do not apply power to the CPU.
3. Using standard Ethernet cabling, make the connec ons to the Titan CPU.
Use Cat6 Ethernet cable for connec ons to input modules and Cat5 cable for
connec on to the LAN. Cable lengths to connected input modules should not
exceed 25 feet. Con nue un l all connec ons are made
4. Apply power to the Titan CPU. The Titan CPU will ini alize and automa cally
detect all connected devices. The ini aliza on period is typically about 90
seconds. Allow the ini aliza on to complete before con nuing.
5. If you have not already done so, install the TCS so ware according to
the installa on instruc ons in the TCS User Manual, and then follow the
procedure in the manual to confi gure the Titan CPU device and Titan Input
Modules.
NOTE: Device detection takes place when the CPU starts up. If you
connect or disconnect a pod after start-up, the CPU does not automatically
re-query the devices. To re-query connected devices, use the supplied
Titan Control Software (‘TCS’).

13
Titan CPU Channel Mul plexer - Connec ons
Via direct Ethernet connec on:
1. If you are making a direct connec on between the Titan CPU and a PC, you
will need to reconfi gure the PC with a sta c IP address on the same subnet as the
CPU.
To determine the correct sta c IP address for the PC, obtain the IP address of the
CPU (the IP address is marked on the device). Use the same fi rst three octets of
this address, but set the last octet to a diff erent number. For example, if the CPU
is confi gured for “192.168.10.51”, you could set the PC to “192.168.10.61”.
For instruc ons on changing the PC IP address, refer to:
h ps://support.microso .com/en-us/help/15089/windows-change-tcp-ip-
se ngs
2. With the sta c address changed on the PC, and with no power applied to the
Titan CPU, plugan Ethernet cable into the Ethernet port on the CPU and then
connect the other end to the Ethernet port on the host PC.
3. Follow steps 3-5 as described in the ‘Via a Network’ sec on on the previous
page.
Changing the IP Address
The Titan CPU IP address can be changed using the Titan CPU IP Address
Programmer applica on, which is available as a part of the Titan Service Pack.
The Titan Service Pack can be obtained from the Downloads page on the
Mars Labs website (www.marslabs.com).

14
Titan CPU Channel Mul plexer - Connec ons
LED Opera on
With power applied to the CPU, the front panel LED indicators will operate as
follows:
PWR (Power) - The green PWR LED will illuminate and remain ON while
power is applied.
ERR (Error) - The red ERR LED will illuminate while the CPU is ini alizing, and
will ex nguish a er ini aliza on has completed (about 40 seconds). The ERR
LED will be lit if the CPU encounters an error during opera on.
SCN (Scan) - The green SCN LED will illuminate when the CPU is scanning.
REC (Record) - The red REC LED will illuminate when the CPU is recording,
either under control from TCS or from the Remote Switch.
Remote Switch Opera on
If a Remote Switch is connected to the CPU when power is applied, the
Remote Switch LED will illuminate solid while the CPU ini alizes, and then
begin blinking at a 1Hz rate a erwards.
With the Remote Switch connected, the CPU will a empt to start scanning
and recording when the switch is in the ON posi on.
When the Remote Switch transi ons from ON to OFF, the CPU will stop
recording the current dataset but con nue scanning.

15
Titan CPU Channel Mul plexer - Specifi ca ons
• Connects mul ple Titan Input Modules to create large channel-count recording
systems
• Isolated power supply accepts voltages of 11–32 VDC.
• Records data directly to an SD memory card (non-removable) or to local host PC
• Network interface allows remote opera on via TCP/IP or UDP
• Compact size and low weight make the CPU suitable for in-vehicle applica ons
• Remote control jack for cabled Start/Stop control
• Auto Start / Auto Record modes
• Simplifi ed user interface allows for easy opera on under diffi cult opera ng condi ons
Features and Specifi ca ons
Recording Media: Non-removable 32GB SD Memory Card
Number of Titan
Modules supported: CPU04 - Up to four 16-channel Titan Input Modules
(64 analog channels total, plus digital channels)
CPU08 - Up to eight 16-channel Titan Input Modules
(128 analog channels total, plus digital channels)
CPU12 - Up to twelve 16-channel Titan Input Modules
(192 analog channels total, plus digital channels)
Sample Rates: CPU12 - Supports up to 5000 samples/sec with 12 modules
(192 channels total, plus digital channels)
Supports up to 8192 samples/sec with 8 modules
(128 channels total, plus digital channels)
CPU08 - Supports up to 8192 samples/sec with 8 modules
(128 channels total, plus digital channels)
CPU04 - Supports up to 10K samples/sec with 4 modules
(64 channels total, plus digital channels)
Power Requirements: 11–32 VDC
Approximately 4W for CPU
(add 4W for each Titan Input module)
PC Opera on: Via network or crossover Ethernet cable
Dimensions / Weight: CPU04 - 17.9 cm x 10.6 cm x 5.6 cm (L x W x H) / 400g
CPU08 - 13.3 cm x 10.6 cm x 5.6 cm (L x W x H) / 450g
CPU12 - 17.9 cm x 10.6 cm x 5.6 cm (L x W x H) / 600g
Key Features
Specifi ca ons

16
Titan CPU Channel Mul plexer - Opera on
The CPU remote recording index (AKA ‘File Index’) always increments based on
the value of the last recorded test, and keeps incremen ng, even if all recorded
test fi les are deleted. Since there may be occassions where it is desireable to
reset the index, TCS (versions 3.0.4 and higher) include a bu on for this purpose.
The bu on is located in the ‘File Controls’ pane on the Recording & Triggers
screen:
Rese ng the CPU File Index
Clicking on the bu on produces a selec on window that allows you to set the
index value to any value from 0000 to 9999. To set the value, use the increment/
decrement controls or manually enter the desired value in the number fi eld:
The index value can also be reset by issuing a manual command in the TCS
Manual Command window (func on key F10 in the Confi gura on tab). For
example, to reset the value to zero, enter the command:
SET_FILE_NUM 0000
Related ICD Commands:
SET_FILE_NUM
Syntax: SET_FILE_NUM <VALUE><CR>
Summary: Sets the fi le index of the CPU to the specifi ed value.
Valid Inputs: <VALUE> = A four digit number from 0000 to 9999
Ex. Response: ACK, ERROR
GET_FILE_NUM
Syntax: GET_FILE_NUM <CR>
Summary: Returns the fi le index of the CPU
Valid Outputs: From ‘0000’ to ‘9999’
Ex. Response: <VALUE>
Note: Using either method described above, after reseting the index to zero, TCS
will display a ‘?’ in the CPU Device Index field until a new remote recording is made.

17
Titan CPU Channel Mul plexer - Warranty & Repair
Mars Labs warrants all their manufactured equipment to be free from defects in material
and workmanship. Mars Labs liability under this warranty is limited to servicing or adjus ng
any equipment returned to the factory for that purpose, and to replace any defec ve parts
thereof. The warranty remains eff ec ve for 365 days following delivery to the original
purchaser. During this  me, equipment will only receive repair when the original purchaser
prepays all return transporta on charges, and Mars Labs fi nds to its sa sfac on that the
equipment is indeed defec ve.
If the fault has been caused by misuse or abnormal condi ons of opera on, normal service
charges will prevail. In this case, an es mate will be submi ed before work is started. Mars
Labs must authorize any warranty returns.
Mars Labs reserves the right to make changes in the design of its instruments without
incurring any obliga on to make the same changes on equipment previously purchased.
This warranty will be void if unauthorized altera ons or modifi ca ons are found which
impede the repair or tes ng of the equipment.
Warranty
The equipment should be tested as soon as it is received. If the equipment is damaged in
any way, a claim should be obtained by the claim agent, and this report should be forwarded
to Mars Labs.
Mars Labs will then advise the customer of the disposi on to be made of the equipment
and arrange for repair or replacement. When referring to this equipment for any reason, the
model number, serial number and purchase order number should be included.
Receipt of Equipment
If the unit fails to operate, or any fault develops, Mars Labs should be no fi ed, giving full
details of the diffi culty, including model number and serial number. Upon receipt of this
informa on, Mars Labs will provide service data and shipping instruc ons.
This warranty is expressly in lieu of all other obliga ons or liabili es on the part of Mars
Labs, which neither assumes nor authorizes any person to assume for it any other liability in
connec on with the sale of its equipment. Contact:
Mars Labs
29 C Street
Laurel, MD
20707
[phone]
email: [email protected]om
Malfunc on

18
Titan CPU Channel Mul plexer - Notes
Notes & Known Issues
Addi onal informa on about the CPU not covered elsewhere:
Error Indica ons:
If a Titan Input Device (Mini-Recorder or Pod) stops sending data for any reason, the
CPU will stop recording/stop scanning and display an error (the ERR LED will be ON).
CPU Power Loss/Data Loss:
1. In the event of a power loss while recording remotely to the CPU, data loss is limited
to 10 seconds maximum.
2. If the CPU loses power while scanning, all independently-powered Titan Input
Devices (Mini-Recorders or Pods) must be power-cycled in order to resynchronize the
system.
CPU Remote Recording:
The CPU does not automa cally handle Pod confi gura on changes made since the
last remote recording (for example, if Pods are swapped between ports, or if a Pod is
removed and used for another test, and then reconnected to the CPU). If a change
occurs between tests, connect to TCS and run a short test to reconfi gure the CPU and all
connected Pods prior to resuming remote recording.
Remote Switch Opera on:
If the Remote Switch is connected to the CPU and switched ON, the CPU will a empt
to record repeatedly even if no pods are connected or an error condi on exists. Each
a empt will generate a small data fi le on the CPU. These fi les are invalid.
Mini-Recorder/Pod Reconfi gura on
When a Mini-Recorder or Pod is connected to the CPU, the baud rate on the COMM
port is reset to 3Mbits. Remote recording func onality on Mini-Recorders is also
disabled (this includes both the front panel switch and the REM jack on the Mini-
Recorder). The default baud rate and remote recording capability is restored on Titan
Mini- Recorders a er running a test directly from TCS.

19
Titan CPU Channel Mul plexer - Notes

Mars Labs, LLC
29 C Street
Laurel, Maryland 20707
[phone]
www.marslabs.com