Corinex CXP-GPH User manual

Corinex Installation Guide
Corinex Compact Headend
CXP-GPH
Version 2.0 | May, 2022

COPYRIGHT
The content of this document is furnished for informational use only, it is subject to change
without notice, and it does not represent a commitment on the part of Corinex Communica-
tions Corp.
Corinex Communications Corp. assumes no responsibility or liability for any errors or inac-
curacies that may appear in this document. It is our policy to enhance our products as new
technologies, hardware components, software and firmware become available; therefore, the
information contained in this document is subject to change without notice.
Some features, functions, and operations described in this document may not be included and
sold in certain countries due to government regulations or marketing policies.
The use of the product or its features described in this document may be restricted or regu-
lated by law in some countries. If you are unsure which restrictions or regulations apply, you
should consult your regional Corinex office or the authorized reseller.
Published by:
Corinex Communications Corp.
900 - 1090 W Georgia Street
Vancouver, B.C. Canada V6E 3V7
Tel.: [phone]
Fax: [phone]
www.corinex.com
Corinex is a registered trademark of Corinex Communications Corp. All products or company
names mentioned herein may be the trademarks of their respective owners.
Copyright© 2001-2021 by Corinex Communications Corp.
NOTE: This equipment has been tested and found to comply with the limits for Class B information
technology equipment. These limits are designed to provide reasonable protection against harmful
interference in a residential installation.
This equipment generates uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference, the end user is advised to take adequate measures.

Corinex Compact Headend
CXP-GPH 1
Table of Contents
1. General Information..................................................................................3
1.1 Included in the delivery of the CXP-GPH........................................................ 3
2. Hardware ..................................................................................................3
2.1 Installation ........................................................................................................... 3
2.1.1 Steps to mount onto the DIN Rail ......................................................... 5
2.1.2 Steps to unmount the device from the DIN Rail................................. 5
2.2 Grounding ............................................................................................................ 6
2.3 Status of the LEDs ................................................................................................ 6
2.4 Connectors ........................................................................................................... 8
3. Software and Initial Setup........................................................................9
4. Commissioning .........................................................................................9
4.1 Installation ........................................................................................................... 9
4.2 Powering up the device...................................................................................... 9
4.3 BPL Coupling ..................................................................................................... 10

Corinex Compact Headend
CXP-GPH 2
List of Figures
Figure 1: CXP-GPH installation....................................................................................... 4
Figure 2: DIN lock installation ........................................................................................ 4
Figure 3: DIN rail mounting............................................................................................. 5
Figure 4: Unmount from DIN rail.................................................................................... 5
Figure 5: CXP-GPH LEDs .................................................................................................. 6
Figure 6: CXP-GPH Connectors...................................................................................... 8
Figure 7: DC power plug................................................................................................. 9
Figure 8: BPL coupling ...................................................................................................10

Corinex Compact Headend
CXP-GPH 3
Acronyms
Autoconf Auto configuration
BPL Broadband over Power Line
CPE Customer Premise Equipment
DC Direct Current
ETH Ethernet
TLS Transport Layer Security
TSM Transport Security Model
USM User Based Security Model
1. General Information
This document is a general description for the following device:
• Corinex Compact Corinex Compact Headend (CXP-GPH)
1.1 Included in the delivery of the CXP-GPH
• Corinex Compact Corinex Compact Headend (CXP-GPH)
• DC power plug
2. Hardware
2.1 Installation
The CXP-GPH has an integrated DIN rail mounting clip. Mount the device at a DIN rail as
shown in the following drawing. The DIN rail has a spring that will automatically close the clip
when the router fits to the rail.
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Corinex Compact Headend
CXP-GPH 4
Figure 1: CXP-GPH installation
As figure 1 indicates, the CXP-GPH has two options for mounting the DIN rail. Depending upon
the desired orientation of the device, customer can relocate the DIN lock from its default lo-
cation to the other side. There is a small hexagonal screw which holds the DIN rail clip to the
device. Removing this screw will help to take the clip out and move to other side if required.
Refer to the following images for instructions on how this is done.
Figure 2: DIN lock installation
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Corinex Compact Headend
CXP-GPH 5
2.1.1 Steps to mount onto the DIN Rail
Once the DIN rail clip is attached to the desired slot, the device can be mounted onto the DIN
rail in two easy steps. Refer to the images below for instructions.
Figure 3: DIN rail mounting
Optionally DIN rail stoppers can be installed to make sure that the device doesn’t slide from
its location.
2.1.2 Steps to unmount the device from the DIN Rail
For unmounting the CXP-GPH, use a screwdriver with a long metal point and open the DIN rail
clip as shown in figure 4. Then push the device up to remove it from the DIN rail.
Figure 4: Unmount from DIN rail
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Corinex Compact Headend
CXP-GPH 6
2.2 Grounding
To ensure the device is working properly and safely, proper grounding should be provided
during the installation. CXP-GPH is designed in such a way that grounding of the DIN rail will
in turn ground the CXP-GPH device too.
2.3 Status of the LEDs
CXP-GPH has 6 LEDs on the front including the 2 standard Ethernet port LEDs. These LEDs
show the real-time operational status of the device. All LEDs are clearly marked on the casing:
Figure 5: CXP-GPH LEDs
All LEDs except for the ones corresponding to the Ethernet port are of a single colour; green
when turned on.
Power
Function: Shows the DC power supply and device auto-configuration status.
Different statuses are shown below:
LED Status ON OFF Fast Flashes Slow Flashes
Function DC power is ON
and autoconf is
finished, or DC
power is ON and
the device is using
NVRAM settings.
DC power
is off.
N/A N/A
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Corinex Compact Headend
CXP-GPH 7
BPL Link
Function: Shows the BPL link status
Different statuses are shown below:
LED Status ON OFF Fast flashes Slow flashes
Function BPL link estab-
lished
No BPL link BPL link activity N/A
System Status
Function: Shows general system status
Different statuses are shown below:
LED Status ON OFF Fast flashes Slow flashes
Function All processes
are running, and
System autoconf
is done or Using
NVRAM configu-
ration
System is
booting,
or waiting
for system
check
System check or up-
grade failed.
System and BPL chip
upgrade successful
when in syncs with
Secure Link LED
N/A
Secure Link
Function: Secure link indication
Different statuses are shown below:
LED Status ON OFF Fast flashes Slow
flashes
Function USM: Last received
SNMP message
successful.
TSM: Persistent TLS
link established.
USM: Last received
SNMP message failed.
TSM: Persistent TLS link
not established yet.
System up-
grade suc-
cessful when
in sync with
System Status
LED
N/A
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Corinex Compact Headend
CXP-GPH 8
Ethernet Port
There are two LEDs for the Ethernet port, the left one is Green and the right one is Yellow.
• LED 1 – Green – ETH Link
LED Status ON OFF Flashes
Function Ethernet Link estab-
lished
No Ethernet Link N/A
• LED 2 – Yellow – ETH Speed and Activity
LED Status OFF ON Flashes
Function 10 Mbps connec-
tion established or
auto negotiation
failed
100 Mbps connec-
tion established
100 Mbps Ethernet
activity
2.4 Connectors
CXP-GPH has 3 connector ports. These are marked on the casing:
Figure 6: CXP-GPH Connectors
DC 24V port: DC 24-48 Nominal Voltage Power connection. The negative (-) and
positive (+) polarities are marked on the casing. The maximum current rating is 1A,
when using 24V, as described on the label.
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Corinex Compact Headend
CXP-GPH 9
BPL port: USB port (type B-like, screw mount) for providing BPL access on the power
line via the external coupler. Optional accessory of 1+1 external coupler utilizes a
specially designed RF cable to provide matched impedance of the BPL signal
transmission.
ETH port: Ethernet port is rated for 10/100 Fast Ethernet with MDIX functionality.
3. Software and Initial Setup
The CXP-GPH runs on a Linux operating system. All these devices are configured as CPEs by
default. To change their modes, auto-configuration mechanism can be used which involves pro-
visioning using the Corinex GridValue system. For more details of this procedure, refer to the
user guide of CXP-GPH.
4. Commissioning
4.1 Installation
Mount the proxy device properly onto a DIN rail. Connect the proxy device to the router using
an Ethernet cable.
4.2 Powering up the device
This device has no power switch. To power it on, just connect DC power (24 to 48V) to the DC
power port.
Figure 7: DC power plug
Make sure to connect the positive terminal to ‘+’ and the negative terminal to ‘-’ as marked on
the front plate. Proper grounding should be provided to ensure safe operation of the device.
The DC power supply should be a minimum of 1.0A current. This is the maximum current re-
quirement of CXP-GPH.
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Corinex Compact Headend
CXP-GPH 10
4.3 BPL Coupling
External coupler can be used to inject the BPL signal into the power line. External couplers
such as Corinex Power Line BPL coupler (E.g. CXZ-CXP-GH3 or CXZ-CXP-GH4) is required to
perform this operation. CXP-GPH is IP41 rated thus the devices should be enclosed in cabinet
to prevent direct exposure to sunlight, rain, running water, etc.
Figure 8 shows a CXP-GPH proxy device, connected to CXZ-CXP-GH3 coupler.
Figure 8: BPL coupling
For more details on how to perform the coupling to the power line, refer the Corinex BPL
coupling user manual.
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