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PL-9

 User Guide   AP5271 issue 1 

Planning the system

   Decide the type and quantity of 

PL

 devices 

required and the wiring distances involved.  Use the 

PL Calculator

 

spreadsheet available from the Allen & Heath web site (

www.allen-

heath.com

) to check that your configuration is possible.  Plan the use of 

the 

PL-9

 branches for the shortest and most efficient cable runs. 

Installing the PL-9

      The 

PL-9

 can be used free standing or 

mounted in a 1U 19” rack space.  For free standing operation remove the 
two rack ears using a T10 Torx head screwdriver and insert the four plastic 
feet supplied by pressing them into the underside.  Allow a minimum of 
73mm clearance behind the unit for the connectors and cables.  Ensure 
adequate ventilation to the side of and behind the unit. 

Wiring the system

   Use flame retardant CAT5 STP (shielded 

twisted pair) cable fitted with RJ45 connectors.  A standard 2 metre cable is 
provided with the 

PL-9

 for connection to the 

iDR

.  Do not use UTP cable.  

We recommend the multi-stranded rather than solid conductor type.  The 
connection follows the EIA/TIA 568B wiring colour scheme.  Ensure all 
ports and cables in the system are wired to this scheme.  The last 

PL

 

device in each branch should have its terminator fitted.  Unused branches 
do not require termination.  Before connecting, read the information 
provided with the 

PL

 devices used. 

Check that your local mains supply is compatible with that printed on 
the rear panel of the unit. 

Observe the local standards which may apply to the installation 
regarding the grade of cable and installation methods.  Do not install 
the equipment where it is subject to moisture, heat or vibration. 

To ensure operator safety ensure that any exposed metal plates, 
chassis and surfaces are correctly bonded to ground.  The PL-9 
chassis is grounded through its mains lead.  Do not remove this 
connection to ground. 

Connect the PL-9 to the Allen & Heath PL-Anet port only.  Do not 
connect it to Ethernet, DR-Link or other RJ45 ports. 

Before powering up the system make sure all the wiring is inspected 
and continuity tested.  This is important as wiring errors may result in 
damage to the equipment. 

Working with the iDR

   With the system connected, power up the 

iDR

 audio processor.  Check that iDR System Manager software version 

V3.30 or later is running on both the 

iDR

 and the PC.  Check that the PL-

Anet  port  is  active.    If  not,  use the File/Preferences/Communications 
Options menu to select the PL-Anet port. 

Switch on the 

PL-9

 by pressing its rear panel ON/OFF switch.  Check that 

the POWER, CHAIN IN and CHAIN OUT indicators light up green indicating 
that communication is established with the 

iDR

.  Check that the branch 

indicators A to G are on indicating that power is available to the PL-Anet 
cables.  If any of these are turned off then unplug and test the cables for 
faults.  Power down for 1 minute to reset the branch fuses. 

The iDR System Manager recognises the 

PL-9

 hub and the connected 

PL

 

devices, giving each a unique address and identification.  Each 

PL 

device 

can be named with up to 16 characters.  Configure the function of the 

PL

 

devices using the iDR System Manager software.  For further information 
refer to the Help file provided within the software. 

 

This product complies with the European Electromagnetic Compatibility directives 89/336/EEC & 92/31/EEC. 

NOTE:

   Any changes or modifications to the equipment not approved by Allen & Heath could void the compliance of the 

equipment.  Whilst we believe the information in this guide to be reliable we do not assume responsibility for inaccuracies. We also 

reserve the right to make changes in the interest of further product development. 

Copyright© 2003 Allen & Heath Ltd. All rights reserved.

 

141mm

5.5"

214mm

8.4"

73mm

2.9"

Remove 2x rack ears

Fit 4x feet

M3 Torx T10

branch

G

F

E

D

C

B

A

chain in

chain out

power

PL-9

7 WAY PL-Anet HUB

PL-9

483mm

19"

443mm

17.4"

48mm

1.9"

44mm

1.7"

1U

IMPORTANT: 

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