background image

Multi-Type Network Distribution Block                              Crestron 

CNHBLOCK

4  

••

  Multi-Type Network Distribution Block: CNHBLOCK

Operation & Installation Guide - DOC. 8157

CNHBLOCK With Mounting Plate

C NHBLO CK

ALL  CONNECTORS  ARE  IN  PARALLEL

4

D

A

1

B

C

Y
Z
G

24

2

Y
Z
G

24

3

E

a

POWER

5

Y
Z
G

24

6

b

c

Y

Z

8

Y
Z
G

24

7

CRESTRON

CRESTRON

24

Y

Z

G

24

Y

Z

G

24

Y

Z

G

Rack Installation

The CNHBLOCK may also be installed into a rack by using a CNXRMAK (not supplied).
Perform the following steps to install the CNHBLOCK into a rack. The only tool required for
this procedure is a #2 Phillips screwdriver.

1.

 

Using a #2 Phillips screwdriver, remove the four mounting screws (shown
below) that secure the mounting plate to the CNHBLOCK and remove the plate.

Detach Mounting Plate

2.

 

For further instructions, refer to the latest revision of the CNXRMAK Installation
Guide (Doc. 8156). This document can be obtained from the Downloads page
(MANUAL Library) of Crestron’s website (www.crestron.com). Search for
CNXRMAK.PDF. New users are required to register in order to obtain access to
the FTP site

Summary of Contents for CNHBLOCK

Page 1: ......

Page 2: ...ption 1 Functional Description 1 Physical Description 1 Leading Specifications 3 Installation and Wiring 3 Installation 3 Network Wiring 5 Connecting the CNHBLOCK to Cresnet Devices 5 Problem Solving 6 General Troubleshooting 6 Y and Z LED Illumination 7 Further Inquiries 7 Return and Warranty Policies 8 Merchandise Returns Repair Service 8 Crestron Limited Warranty 8 ...

Page 3: ... silk screened labels The front panel contains 16 connectors that are used to input power and Cresnet data signals to the CNHBLOCK and output the same to Cresnet devices All connectors are internally wired together in parallel Although not shown all connectors used to attach the Cresnet wiring to the CNHBLOCK are supplied but Crestron modular cables are not Also on the front panel of the CNHBLOCK ...

Page 4: ...NHBLOCK to other Cresnet four wire devices The three 6 pin 6 position RJ11 modular ports labeled a b and c are used to connect the CNHBLOCK to modular devices in the Cresnet system Only one port any of the three types is used as an input source and the remaining ports are used as outputs CAUTION Do not connect or daisy chain more than one power input power pack or power supply to the CNHBLOCK Mult...

Page 5: ...are rounded to the nearest hundredth unit Leading Specifications of the CNHBLOCK SPECIFICATION DETAILS Height 1 27 in 3 23 cm Width 5 55 in 14 10 cm Depth 3 30 in 8 38 cm Weight 0 68 lb 0 31 kg Dimensions Weight The weight listed is for the CNHBLOCK mounting plate and all supplied 4 pin connectors As of the date of manufacture this unit has been tested and found to comply with specifications for C...

Page 6: ...not supplied Perform the following steps to install the CNHBLOCK into a rack The only tool required for this procedure is a 2 Phillips screwdriver 1 Using a 2 Phillips screwdriver remove the four mounting screws shown below that secure the mounting plate to the CNHBLOCK and remove the plate Detach Mounting Plate 2 For further instructions refer to the latest revision of the CNXRMAK Installation Gu...

Page 7: ...000 Where The required wire gauge should be chosen such that the resistance value is less than the value calculated in the resistance equation Refer to the table below Wire Gauge Values RESISTANCE R WIRE GAUGE 4 16 6 18 10 20 15 22 13 24 Double CAT 5 NOTE All Cresnet wiring must consist of two twisted pairs One twisted pair is the 24V conductor and the GND conductor and the other twisted pair is t...

Page 8: ...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 curre...

Page 9: ...AL CONDITIONS Bright Dim Both Y and Z data signals present Off Bright Both data signals missing Bright Bright Y data signal is present Z is missing Off Dim Z data signal is present Y is missing Dim Bright Y and Z data signals reversed Further Inquiries If after reviewing this Operation Installation Guide you cannot locate specific information or have questions please take advantage of Crestron s a...

Page 10: ... three 3 years from the date of shipment to purchaser Disk drives and any other moving or rotating mechanical parts are covered for a period of one 1 year Crestron warrants all its other products for a period of one year from the defects mentioned above excluding touchscreen display components which are covered for 90 days Incandescent lamps are completely excluded from Crestron s Limited Warranty...

Page 11: ......

Page 12: ......

Reviews: