EAW D S A 2 5 0, D S A 2 3 0 owner manual I a 4 8 5 N e t w o r k, A B L I N G N O T E S

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8 . 3 E I A - 4 8 5 N e t w o r k

EIA-485 network cabling has certain limitations that these notes summarize. Improper set-up of an EIA-485 network can result in faulty or no operation. To use EIA-485 network configurations or cabling schemes not addressed in this manual, consult a qualified network professional.

8 . 3 . 1 C A B L I N G N O T E S :

1.Single Loudspeaker or loudspeaker cluster:

One end of the EIA-485 cable is connected to the computer’s EIA- 485 port and the other to the EIA-485 connector on the loudspeaker or on one of the loudspeakers in a cluster.

2.Multiple Loudspeakers:

One end of the EIA-485 cable is connected to the computer’s EIA- 485 port. The cable is then connected daisy-chain fashion to multiple loudspeakers or clusters. This means to connect the EIA-485 cable from the computer to a loudspeaker or cluster, then to loop it to add- itional loudspeakers or clusters. Use the supplied RJ-45 Signal Link Cables to link loudspeakers within a cluster using the Signal Link jacks. This cable also interconnects the audio between the loudspeakers.

3.DO use an EIA-485 hub when separate EIA-485 home runs to the computer are needed because of cable routing constraints. Note: EIA-485 hubs often contain an RS-232 to EIA-485 converter.

4.DO use an EIA-485 hub to extend the length of the EIA-485 cabling beyond 1000 ft / 300 m. Literature about EIA-485 claims maximum cable lengths of 4,000 ft. However, the fastest data rates for a DSA network, assuming ideal network conditions, limit the maximum to 2,800 ft / 850 m. Performance variations for the network cable, connectors, EIA-485 drivers, and several other variables can and often do further reduce this length. Therefore, this is the maximum recommended length to ensure reliable communications.

5.DO use an EIA-485 hub to connect the EIA-485 network to more than 31 DSA Clusters. Each loudspeaker within a multi loudspeaker DSA Cluster counts as one DSA Cluster if they are all connected DIRECTLY to the EIA-485 network using the EIA-485 Phoenix connectors. If the loudspeakers within a multi-loudspeaker DSA Cluster are inter-connected via the Signal Link connectors, and thus only one is connected directly to the EIA-485 network, then this counts as only one DSA cluster.

6.DO NOT connect the EIA-485 cabling to the loudspeakers in a star fashion. This means do not home-run an EIA-485 cable from each loudspeaker or cluster to the computer.

7.DO NOT connect the EIA-485 cabling between loudspeakers in a star fashion. This means do not run an EIA-485 cable from one loudspeaker or cluster to more than one other loudspeaker or cluster.

8.DO NOT connect loudspeakers or clusters in a “stub” fashion. This means do not connect a branch cable off an EIA-485 cable to run to a loudspeaker or cluster.

9.DO NOT connect the far end of the EIA-485 cable back to the computer. This means do not make an electrically closed loop for the EIA-485 cabling.

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Contents Page Introduction Safety Mechanical Drawings Introduction Safety ChapterE N E R a L P R E C a U T I O N S E t u r n i n g P r o d u c t s t o E AW Chapter UnpackingH i p p i n g D a m a g e Co m p u t e r Co n t r o l Co n n e c t i o n E s c r i p t i o nU d i o S i g n a l Co n n e c t i o n T w e e n L o u d s p e a k e r sAC M a i n s Installation Hy s i c a l InstallationG n a l P r o c e s s i n g 2X 3/8-16 X 2 LGO U S T I C a L B E N E F I T S Y s t e m O ve r v i e wA S E R I E S M O D E L S A t u r e s E C T R I C a L B E N E F I T SP p l i c a t i o n s H Y S I C a LN g i n e e r i n g D e s i g n 4a Angled Radiation PatternCo m p a r i s o n t o Tr a d i t i o n a l P r o d u c t s S a P i l o tO w Fr e q u e n c y Pe r f o r m a n c e Installation E s i g n i n g D S a S y s t e m sU D I O S I G N a L C O N N E C T I O N O M P U T E R C O N T R O L C O N N E C T I O NEIA Daisy Chaining Computer and Audio Signals BET Ween ClustersCo b r a N e t N e t w o r k Co n n e c t i o n s OFFLO U D S P E a K E R I N T E R FA C E A B L I N GU D I O / C O M P U T E R I N T E R FA C E Multiple LoudspeakersC M a i n s P o w e r C o n n e c t i o n O W E R O N / O F FLIF R o u n d i n gEIA OFF 2 Signal End / Power End 3 DSA Cluster Configurations N S TA L L AT I O N O P T I O N S N G L I N G E N C LO S U R E SO U N T I N G H E I G H T WA L L B R a C K E T I N S TA L L AT I O N7a Wall Bracket Spacing N C LO S U R E B R a C K E T I N S TA L L AT I O N N C LO S U R E I N S TA L L AT I O N9b Retainer Bolt Installation N i t i a l S e t U p Identification LEDE D I N D I C AT O R OperationO W E R M a N a G E M E N T I G N a L M O N I T O R I N G I G N a L P R O C E S S I N G S E T T I N G S O r m a l O p e r a t i o nO W E R I N G U P P e r a t i o n a l ‘ D O S ’ a n d ‘ D O N T S ’ O w t o C o n t a c t E AW A p t e r 7 M a i n t e n a n c e a n d S e r v i c eA r r a n t y E R I O D I C P H Y S I C a L I N S P E C T I O N S A p t e r 8 a p p e n d i c e sN s p e c t i o n s a n d M a i n t e n a n c e E R F O R M a N C E T E S T I N GTroubleshooting DSA250 OnlyEIA-485 I a 4 8 5 N e t w o r k A B L I N G N O T E SU p p o r t F o r C o b r a N e t E R M I N AT I O N N O T E SBack Right Side Back Front 15.8 mm 101.5 mm 70.0 mm WA L L B R a C K E T107.3 mm 4X Ø 0.38 65 mmPage R t N o . R D 0 0 8 6 D 1 4 M AY 0
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