Axon Cerebrum CGP-4848 User manual

CEREBRUM
CGP-4848
Cerebrum 1U General Purpose Interface unit
Operation manual

● ALWAYS disconnect your entire system from the AC mains before cleaning any component.
● NEVER use flammable or combustible chemicals for cleaning components.
● NEVER operate this product if any cover is removed.
● NEVER wet the inside of this product with any liquid.
● NEVER pour or spill liquids directly onto this unit.
● NEVER block airflow through ventilation slots.
● NEVER bypass any fuse.
● NEVER replace any fuse with a value or type other than those specified.
● NEVER attempt to repair this product. If a problem occurs, contact your local Axon distributor.
● NEVER expose this product to extremely high or low temperatures.
● NEVER operate this product in an explosive atmosphere.
Warranty: Axon warrants their products according to the warranty policy as described in the general terms.
That means that Axon Digital Design BV can only warrant the products as long as the serial numbers are not
removed.
Copyright © 2001 –2019 AXON Digital Design B.V.
Date created: 25-01-2012
Date last revised: 01-04-2019
Axon, the Axon logo and Synapse are trademarks of Axon Digital Design B.V.
This product complies with the requirements of the product family standards for audio, video, audio-visual
entertainment lighting control apparatus for professional use as mentioned below.
EN60950
EN55103-1: 1996
EN55103-2: 1996
Safety
Emission
Immunity
Axon Digital Design
CGP-4848
Tested To Comply
With FCC Standards
FOR HOME OR OFFICE USE
This device complies with part 15 of the FCC Rules
Operation is subject to the following two conditions:
(1) This device may cause harmful interference, and
(2) This device must accept any interference received, including
interference that may cause undesired operation.

3
Table of Contents
Introduction to Cerebrum 5
An Introduction to Cerebrum 5
Key Cerebrum features 5
Configuration 6
Monitoring workflow & events 6
The CGP-4848 control panel 7
Introduction 7
Features 7
Installation 8
Connecting the D-sub connectors 8
General Purpose Inputs 8
General Purpose Outputs 8
GPI input connectors 9
GPI output connectors 10
Configuration 11
Ip settings 11
NOTE 11
Adding the CGP-4848 to the Cerebrum system 12
Configuring functionality 14
Reprogramming the CGP-4848 15
Enter Bootmode 15
Upgrading the panel’s firmware 15
Specifications 17

4

5
1
Introduction to Cerebrum
An Introduction to
Cerebrum
In modern broadcasting, the multi-platform delivery and multi-
purpose repackaging of materials demand that you master a
diversity of workflows. AXON’s Cerebrum software application
makes the implementation of multiple video and audio signal paths
easier, more efficient and cost-effective than ever. Cerebrum
provides comprehensive tools to configure,monitor and maintain
not only the complete range of Axon products, but also a wide
variety of other devices.
The result is that you, and limitless numbers of users, can take total
control over multiple and complex routines. Ultimately, you can
make your work flow how you want it to flow.
Please visit the AXON Digital Design Website at www.axon.tv to
obtain the latest information on our new products and updates.
Key Cerebrum
features
Cerebrum is a Windows-based application whose advanced
functionality and broad range of features make life easier. The
brains behind your many and varied workflows, Cerebrum allows
users to remotely:
▪Configure… a complex workflow in a short space of time.
▪Manage & Report… events using hierarchical system status.
▪Control… devices via an intuitive, user-friendly graphical
interface.
▪Maintain… a workflow over its lifetime.
Cerebrum employs Ethernet communication to each device in your
chosen workflow, providing the ability to both configureand
monitor devices at local and remote sites. It uses an SQL database
to record, view and archive historical workflow events as well as
store the user-definable aspects of each device’s configuration. This
database can also be redeployed for the user’s own requirements via
ODBC or similar interface.
The application allows up to 64 user-groups to be defined. For each
group the level of access can be restricted, not only to program
functionality but also to control access of individual settings on
specific devices. Limitless users can be added and assigned to one
of these groups, each with their own unique password. This ensures
that Cerebrum can be used in operations where conditional access is
required, and as an administrative tool.

6
Configuration
Within its clear, intuitive interface Cerebrum provides you with the
tools to configure your workflow with speed and ease. Each device
is represented by one, or more, graphical dialogue interfaces, which
are shown automatically in the Control view when the device is
selected. These provide a clear idea of the function and signal flow
within the module, and make clear what effect the setting has on the
signal path. Visualisations for some devices, such as Synapse
Aspect Ratio Converters, are given for the output display. If you
need further clarification of function a view to the manual for the
selected card is always available.
You can save the configuration of a device as a template file, or to
the clipboard, and quickly copy it to other selected devices in the
workflow. Using Cerebrum’s Compare function, the settings and
status of a device of the same type can be compared, with any
differences highlighted. To ease some aspects of configuration, and
to make monitoring of the system more applicable to each user’s
particular application, additional data can be added about the
location, channel and/or service the device is providing. There is
also a free-form notes field for all other critical information.
Monitoring
workflow & events
Cerebrum provides a multitude of ways to let you accurately track
events within your workflows. Each device in your workflow is
shown in the System view, and displays its current and historical
status using an icon. Cerebrum actively monitors each device to
check for its current status. The status of each device is passed to a
parent node within the System view and a hierarchical status of your
complete workflow is shown using a single icon. This is also
reflected in the application’s optional Status Bar, and in the System
Icon Tray, when the application is either obscured or minimised.
The System view can be alphanumerically sorted by the network
address, user name, card type or one of the user defined data items
such as Channel, Service, Room or Bay.
Each event occurring for a device being monitored (Synapse,
SNMP or Router) is logged to the database and shown in the Event
Log. A status priority can be assigned to each event to determine
whether an alarm or warning action should be triggered. Each state
of a device’s status can be configured by the system administrator to
reflect the severity of the event, plus the method by which the
warning or error should be cleared (either manually or automatically
on a good event state) allowing the status to really reflect the
condition of a users system.
The Event Log window can be filtered using different criteria.
Additional user data can be stored with each event, such
as the cause/reason for the related warning or error.
Cerebrum allows limits to be set for the size of the Alarm Log table
in the SQL database allowing the user to keep historical records for
the activity of the system.

7
4
The CGP-4848 control panel
Introduction
The CGP-4848 Cerebrum general purpose interface unit is a 1U
rack mount panel with 48 GPI inputs and 48 GPI outputs.
Features
All GPI’s are optically isolated providing a high degree of isolation
from the connected equipment. A local protected low voltage source
is available on the input connectors for any GPI’s fed from a
floating relay contact pair.
All GPO’s are provided in the form of a floating/isolated relay
contact pair using the common and normally open contacts. Fifteen
of the relay outputs also make the normally closed contact available.
The unit provides a basic hardware interface to a Cerebrum control
system. The general purpose inputs and outputs can be used for a
variety of tasks including physical GPI/O’s for the Cerebrum Tally
and Mnemonic option or just for very simple interface to third party
devices for tasks such as alarm/status monitoring or control.
The unit uses its inbuilt 100Base-T Ethernet connector to connect to
the Cerebrum server over either a local or wide area network. The
unit can be configured to use either DHCP or manually assigned IP
addresses. As with other Axon devices when used in manual IP
assignment mode the address, sub-net mask and gateway can be
assigned using the configuration mode of the panel.
The unit shows the status for the power supplies, GPI and GPO
activity as well as Ethernet connectivity on the front panel of the
device.
The unit is powered with an external AC-DC brick PSU unit. The
rear of the unit has two lockable DC power inlets allowing for an
optional redundant PSU in critical applications. The unit has an
earth or grounding stud by the side of the DC inlets.

8
5
Installation
Connecting the
D-sub connectors
The connection details of the 37 way D type connectors are shown
in the tables on the next page. Please make sure the cables are
properly soldered by trained personnel.
General Purpose
Inputs
To activate a GPI input on the unit a voltage drop (4.5V-13Vdc) has
to be present across the input (A & B) pins. Internally these pins
feed a bidirectional optical isolator which provides an electrical
isolation between the input signals applied and the unit. Internal
resistors on each pin (330 Ohms, total of 660 Ohms) will limit the
current flow through the optical isolator.
If the input to the unit cannot generate a voltage then the local
supply voltage (+5Vdc) on pin 19 of each of the input connectors
can be used to provide this. This output pin is current limited and
will provide no more than 400mA. However even if all 16 inputs
use this pin then only 120mA will be drawn.
For instance to connect a normally open mechanical switch to
trigger input GPI 1 when it is closed, wire pin 19 of the input
connector to one side of the switch, then wire the other side of the
switch to pin 1 (Input 1A) of the same connector, then wire pin 20
(Input 1B) to pin 17,18,36 or 37(0V).
General Purpose
Outputs
The GPI outputs are connected internally to relay contacts. On the
first five GPI outputs of each connector the common, normally open
and normally closed contacts are available. On the remaining eleven
GPI outputs just the common and normally open contact pairs are
available.
The contact pairs can pass a current of up to 2A with a resistive
load. For more details see the following specification section.

9
GPI input
connectors
This is the pin assignment of the 37 pin ‘D’-type female (socket)
connectors
Inputs 1-16 Inputs 17-32 Inputs 33-48
PIN
SIGNAL
PIN
SIGNAL
PIN
SIGNAL
1
Input 1A
1
Input 17A
1
Input 33A
2
Input 2A
2
Input 18A
2
Input 34A
3
Input 3A
3
Input 19A
3
Input 35A
4
Input 4A
4
Input 20A
4
Input 36A
5
Input 5A
5
Input 21A
5
Input 37A
6
Input 6A
6
Input 22A
6
Input 38A
7
Input 7A
7
Input 23A
7
Input 39A
8
Input 8A
8
Input 24A
8
Input 40A
9
Input 9A
9
Input 25A
9
Input 41A
10
Input 10A
10
Input 26A
10
Input 42A
11
Input 11A
11
Input 27A
11
Input 43A
12
Input 12A
12
Input 28A
12
Input 44A
13
Input 13A
13
Input 29A
13
Input 45A
14
Input 14A
14
Input 30A
14
Input 46A
15
Input 15A
15
Input 31A
15
Input 47A
16
Input 16A
16
Input 32A
16
Input 48A
17
0V (1-16)
17
0V (17-32)
17
0V (33-48)
18
0V (1-16)
18
0V (17-32)
18
0V (33-48)
19
+5V (1-16)
19
+5V (17-32)
19
+5V (33-48)
20
Input 1B
20
Input 17B
20
Input 33B
21
Input 2B
21
Input 18B
21
Input 34B
22
Input 3B
22
Input 19B
22
Input 35B
23
Input 4B
23
Input 20B
23
Input 36B
24
Input 5B
24
Input 21B
24
Input 37B
25
Input 6B
25
Input 22B
25
Input 38B
26
Input 7B
26
Input 23B
26
Input 39B
27
Input 8B
27
Input 24B
27
Input 40B
28
Input 9B
28
Input 25B
28
Input 41B
29
Input 10B
29
Input 26B
29
Input 42B
30
Input 11B
30
Input 27B
30
Input 43B
31
Input 12B
31
Input 28B
31
Input 44B
32
Input 13B
32
Input 29B
32
Input 45B
33
Input 14B
33
Input 30B
33
Input 46B
34
Input 15B
34
Input 31B
34
Input 47B
35
Input 16B
35
Input 32B
35
Input 48B
36
0V (1-16)
36
0V (17-32)
36
0V (33-48)
37
0V (1-16)
37
0V (17-32)
37
0V (33-48)

10
GPI output
connectors
This is the pin assignment of the 37 pin ‘D’-type male (plug)
connectors
Outputs 1-16 Outputs 17-32 Outputs 33-48
PIN
SIGNAL
PIN
SIGNAL
PIN
SIGNAL
1
Output 1 NO
1
Output 17 NO
1
Output 33 NO
2
Output 1 NC
2
Output 17 NC
2
Output 33 NC
3
Output 2 COM
3
Output 18 COM
3
Output 34 COM
4
Output 3 NO
4
Output 19 NO
4
Output 35 NO
5
Output 3 NC
5
Output 19 NC
5
Output 35 NC
6
Output 4 COM
6
Output 20 COM
6
Output 36 COM
7
Output 5 NO
7
Output 21 NO
7
Output 37 NO
8
Output 5 NC
8
Output 21 NC
8
Output 37 NC
9
Output 6 COM
9
Output 22 COM
9
Output 38 COM
10
Output 7 COM
10
Output 23 COM
10
Output 39 COM
11
Output 8 COM
11
Output 24 COM
11
Output 40 COM
12
Output 9 COM
12
Output 25 COM
12
Output 41 COM
13
Output 10 COM
13
Output 26 COM
13
Output 42 COM
14
Output 11 COM
14
Output 27 COM
14
Output 43 COM
15
Output 12 COM
15
Output 28 COM
15
Output 44 COM
16
Output 13 COM
16
Output 29 COM
16
Output 45 COM
17
Output 14 COM
17
Output 30 COM
17
Output 46 COM
18
Output 15 COM
18
Output 31 COM
18
Output 47 COM
19
Output 16 COM
19
Output 32 COM
19
Output 48 COM
20
Output 1 COM
20
Output 17 COM
20
Output 33 COM
21
Output 2 NO
21
Output 18 NO
21
Output 34 NO
22
Output 2 NC
22
Output 18 NC
22
Output 34 NC
23
Output 3 COM
23
Output 19 COM
23
Output 35 COM
24
Output 4 NO
24
Output 20 NO
24
Output 36 NO
25
Output 4 NC
25
Output 20 NC
25
Output 36 NC
26
Output 5 COM
26
Output 21 COM
26
Output 37 COM
27
Output 6 NO
27
Output 22 NO
27
Output 38 NO
28
Output 7 NO
28
Output 23 NO
28
Output 39 NO
29
Output 8 NO
29
Output 24 NO
29
Output 40 NO
30
Output 9 NO
30
Output 25 NO
30
Output 41 NO
31
Output 10 NO
31
Output 26 NO
31
Output 42 NO
32
Output 11 NO
32
Output 27 NO
32
Output 43 NO
33
Output 12 NO
33
Output 28 NO
33
Output 44 NO
34
Output 13 NO
34
Output 29 NO
34
Output 45 NO
35
Output 14 NO
35
Output 30 NO
35
Output 46 NO
36
Output 15 NO
36
Output 31 NO
36
Output 47 NO
37
Output 16 NO
37
Output 32 NO
37
Output 480 NO

11
6
Configuration
Ip settings
When powering on the CGP-4848 unit for the first time the unit will
default its IP address to 192.168.0.100. In order to change IP
settings of the CGP-4848 unit you will need to use Cerebrum V1.07
(or higher). The Cerebrum application will need to be able to
communicate with the unit at the default (192.168.0.100) or
currently assigned IP address. This may require you to directly
connect to the unit using a CAT5 crossover cable and manually
assigning an IP address for the PC, or assigning another IP address
within the same sub-net (192.168.0.X) to your local IP adapter.
In order to change the IP address of the unit select the Engineering-
>Configure Cerebrum Hardware option under the View menu. This
will present a dialog as shown below.
NOTE
Please do not press the ‘Enter Bootmode’ button in the
above displayed screenshot, unless explicitly instructed by
Axon Support.
When the Current IP Address field is correct, press the ‘Connect’
button to read back the current settings from the unit. If the
application communicated with the unit then the fields for the New
IP Address, Use DHCP, Subnet mask, Gateway IP address and GPI
de-bounce time will reflect the settings of the unit and will be
enabled for editing.
When the desired settings have been given, press the Apply and
Reset Unit button to write these settings to the unit. The unit will
then re-boot and will appear on the network at the desired IP
address.
In order to default the unit back to its initial settings there is a
recessed default switch on the rear of the unit. If this is pressed for 5
seconds whilst either the unit is powered on, or the recessed reset
button is pressed then the unit will clear down the statically stored
settings to the following values:
DHCP Mode: off (manually assigned IP)
IP Address: 192.168.0.100
Sub-net mask: 255.255.255.0
Gateway IP Address: 192.168.0.1
GPI de-bounce time: 5mS

12
Adding the CGP-
4848 to the
Cerebrum system
On the correct IP address has been given, the device will need to be
added to the Cerebrum system in order for it to be used within the
application.
In order to use a CGP-4848 on your Cerebrum system you will need
to be running Cerebrum V1.07 or later. To add the unit go to the
Network menu and choose the Add Generic Device option, from the
Device Category selection choose the ‘GPI/O’ setting and ‘CGP-
4848’ from the Device type selection. Then select the configured IP
address and suitable Device name for the unit and finally press the
Add button. The following screenshot displays this window.
The unit should now appear at the correct IP address in the System
View of Cerebrum.

13
When the unit is on-line and selected in the System View the
Device View will allow control of the GP outputs of the unit as
shown below.
The Monitoring tab, in the same way as all other devices within
Cerebrum, shows a historical log of the status events for this unit
along with the status of the GP inputs and PSU’s. the following
screenshot displays the monitoring tab.

14
Configuring
functionality
The CGP-4848 is a ‘generic’ device in the system and can be used
by the Cerebrum cost options (Panel Viewer, Tally Manager) to
trigger GP outputs and any event within the Cerebrum system.
The CGP-4848 device can be used as a basic status detection for
third party devices, for this to be used the Status severities of the
unit will need to be configured using the Generic Device Status
Severities dialog which can be found in the Configuration->Status
Severities menu within Cerebrum.
For more information on either of these topics please consult the
Cerebrum on-line help file.

15
7
Reprogramming the CGP-4848
Enter Bootmode
The firmware on the unit can be reprogrammed via an Ethernet
connection by using a web page available when the unit is in its
bootloader mode.
To put the unit into its bootloader mode make sure the unit has been
removed from the system, the quickest and easiest way to do this is
to change the IP address of the device in the system view to another
IP address temporarily. Then select the Engineering →
Configure Cerebrum Hardware option under the View
menu. This will present a dialog as shown below.
Enter the IP address of the device and then press Connect. When
connected press the Enter Bootmode and then Cancel to quit this
dialog.
Upgrading the
panel’s firmware
When the unit is in this mode, it will host a webserver at its IP
address. If you use a web browser and type in the IP address in the
address bar it will display the following page:

16
To upgrade the firmware supply the user name (‘axon’) and the
password (‘Cerebrum’) and press the Login button.
The browser page will then prompt for a firmware file with the
Browse button.
If you locate the required file and then press the Upload button the
panel will then reprogram itself.
After successfully programming the unit it will then prompt the user
to reset the MCU.
After doing this the brower will complete and the unit will reset
itself after which the unit can be added back into the system by
changing the IP address of the device in the system to the IP address
of the unit.

17
8
Specifications
Dimensions
Height
45mm (1.73”) (1RU)
Width (including front panel)
484 mm (19”)
Depth (including front panel and DC
connector)
195mm (7.67”)
Width (excluding front panel)
450 mm (17.71”)
Depth (excluding front panel, including
DC connector)
175mm (6.88”)
Weight
Weight (excluding power adapter)
~2.5 kg
Power
AC PSU
Panel input
100–240V AC - 1.2A, Frequency: 50/60 Hz
12V DC - 2.0A
General Purpose Inputs
Input Voltage range
Typical input current
5-12Vdc +/- 10% (4.5V –13.2V)
5mA (5Vdc input)
General Purpose Outputs
Maximum Voltage
Maximum Current
Max. Switching capacity
Contact resistance
Expected life
220Vdc, 250Vac
2 A
60W
< 70mOhms
> 5 x 105operations
Local Output Voltage (Input connectors pin 19)
Voltage
Maximum Current
5Vdc +/- 10%
400mA
Miscellaneous
Operating temperature
0º to 40º C environmental temperature (32º to 104º F)
Storage temperature
-20º to 70 º environmental temperature (-4º to 158º F)