PRAGMATIC COMMUNICATIONS SYSTEMS CATS-KP, User Manual

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Installation
Figure 1: Wiring plans
We recommend using plan T-568B.
Before connecting units we recommend to test the integrity of the cables and the connectors
using a cable analyzer (such as AtlasIT). Loose or broken wires may stop the network
functioning.
Step 2—connecting the CATS™ units
To ensure normal operation the CATS™ units must be connected to CAT5 cables according to
the house wiring diagram. Please refer to the CATS™ User’s Manual for more information.
1. CATS™ RJ-45 pin-out
The following wires are used in CATS™ network:
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1, 2 – RS485 (A) and RS485 (B) NOTE: USE DB-9 pins 2 & 3 for new designs
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3, 4, 5, 6 – Audio/Video and infrared IR traffic
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7, 8 – grounded.
The new generation of CATS™ units (firmware 2.3) does not use RJ45 pins for RS485
signaling. The DB9 socket is used instead. Please check the integrity of the RS485 network
before using it.
Figure 2: CATS™ connectors
Split CAT5 cable for the new
generation of units as follows:
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RJ45 pin 1 – DB9 pin 2
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RJ45 pin 2 – DB9 pin 3