Crestron electronic Network Distribution Block manual Problem Solving, General Troubleshooting

Multi-Type Network Distribution Block Crestron CNHBLOCK

NOTE: When using the CNHBLOCK to output power to other devices, do not exceed the maximum capacity of the power pack or power supply. Calculate and add the total power requirements for all devices drawing power from the CNHBLOCK. If necessary, use additional CNHBLOCKs and power packs or power supplies.

If making four-wire connections to Cresnet devices, review the latest revision of the network interconnection drawing (Doc. 5411). The document can be obtained from the Downloads page (CABLES and MANUAL Libraries) of Crestron’s website (www.crestron.com). Search for CRESNET.PDF. New users are required to register in order to obtain access to the FTP site.

If making category 5 connections, refer to the latest revision of the Cresnet Mini Network CAT 5 Interconnect Drawing (Doc. 5819). This document can be obtained from the Downloads page (CABLES and MANUAL Libraries) of Crestron’s website (www.crestron.com). Search for CAT5.PDF.

If making modular connections to devices in the Cresnet system, review the latest revision of the Network Modular Cable Requirements (Doc. 5682). This document can be obtained from the Downloads page (CABLES and MANUAL Libraries) of Crestron’s website (www.crestron.com). Search for MODULAR.PDF.

CAUTION: Crestron modular cables are rated for a maximum of two (2) amperes. Do not exceed this current capacity for any modular device. If more current is required, connect an appropriate external power pack to the modular device.

NOTE: Use only Crestron modular cables when making connections to the CNHBLOCK modular ports. DO NOT use standard, modular 6-conductor telephone cables. Most telephone cables are wired in a crisscross fashion and are not compatible with Crestron equipment.

Problem Solving

General Troubleshooting

The table below provides corrective action for possible trouble situations. If further assistance is required, please contact a Crestron technical support representative.

CNHBLOCK General Troubleshooting

TROUBLE	POSSIBLE	CORRECTIVE ACTION
	CAUSE(S)
POWER LED does not	CNHBLOCK is not	Confirm that power is supplied to the
illuminate.	receiving power.	CNHBLOCK.
Y data LED not	Y and Z data wires	Refer to the "Y and Z LED Illumination"
brightly illuminated.	incorrect.	section on the next page.
Z data LED not
dimly illuminated.

6 ∙ Multi-Type Network Distribution Block: CNHBLOCK Operation & Installation Guide - DOC. 8157