Crestron CSP-RS232I How to use

Crestron CSP-RS232I
RS-232 Isolator
Operations & Installation Guide

This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
All brand names, product names and trademarks are the property of their respective owners.
©2008 Crestron Electronics, Inc.

Crestron CSP-RS232I RS-232 Isolator
Contents
RS-232 Isolator: CSP-RS232I 1
Introduction ...............................................................................................................................1
Features and Functions................................................................................................1
Specifications ..............................................................................................................2
Physical Description....................................................................................................3
Industry Compliance ...................................................................................................8
Setup .......................................................................................................................................... 9
Installation................................................................................................................... 9
Hardware Hookup ....................................................................................................... 9
Problem Solving ......................................................................................................................10
Troubleshooting......................................................................................................... 10
Power Requirements.................................................................................................. 11
Further Inquiries ........................................................................................................ 12
Future Updates .......................................................................................................... 12
Return and Warranty Policies ..................................................................................................13
Merchandise Returns / Repair Service ...................................................................... 13
CRESTRON Limited Warranty.................................................................................13
Operations & Installation Guide – DOC. 6634A Contents •i

Crestron CSP-RS232I RS-232 Isolator
RS-232 Isolator: CSP-RS232I
Introduction
The CSP-RS232I is an accessory designed to protect a Crestron®control
system's COM ports from lightning surges and other electrical
disturbances brought through the RS-232 control line. By electrically
isolating any distant, outdoor device such as a pool & spa controller or
irrigation system, the CSP-RS232I can prevent damage to the control
system in the event of a near lightning strike, ground-loop, or short from
a high voltage line.
Features and Functions
• Recommended for lengthy or outdoor RS-232 cable runs
• Protects control systems from lightning strikes and electrical
disturbances
• Supports RS-232* from 300 to 115.2k baud
• Passes RX, TX, RTS, and CTS signals
• 4.5 Kilovolt RMS galvanic isolation
* RS-422 and RS-485 are not supported.
Operations & Installation Guide – DOC. 6634A RS-232 Isolator: CSP-RS232I •1

RS-232 Isolator Crestron CSP-RS232I
Specifications
Specifications for the CSP-RS232I are listed in the following table.
CSP-RS232I Specifications
SPECIFICATION DETAILS
Isolation 4.5 KilovoltsRMS for 1 minute
Supported Protocol RS-232
Power Requirements
12VDC
Cresnet Power Usage
(24VDC)
May be powered by Cresnet®, or
a dedicated 12 or 24 Volt power
supply
0.5 Amps @ 12 Volts DC from
PW-1205 or PW-1210RU power
supply (sold separately)
1 Watt (0.04 Amp @ 24 Volts DC)
Enclosure Steel, surface mount box with (2)
integral mounting flanges, printed
label
Environmental
Temperature
Humidity
Heat Dissipation
32º to 158ºF (0º to 70ºC)
10% to 90% RH
(non-condensing)
3 BTU/Hr
Dimensions
Height
Width
Depth
1.34 in (3.40 cm)
4.52 in (11.48 cm)
3.76 in (9.55 cm)
Weight 9.1 oz (257 g)
Available Accessories
PW-1205
PW-1210RU
CNSP-XX
12 Volt Power Pack
12 Volt Power Pack; International
Version, 230V
Custom Serial Interface Cable
2 •RS-232 Isolator: CSP-RS232I Operations & Installation Guide – DOC. 6634A

Crestron CSP-RS232I RS-232 Isolator
Physical Description
This section provides information on the connections, controls and
indicators available on your CSP-RS232I.
CSP-RS232I Physical View (Top)
CSP-RS232I Physical View (Bottom)
Operations & Installation Guide – DOC. 6634A RS-232 Isolator: CSP-RS232I •3

RS-232 Isolator Crestron CSP-RS232I
CSP-RS232I Overall Dimensions
3.76 in
(9.55 cm)
3.40 in
(8.64 cm) 1.75 in
(4.45 cm)
4.52 in
(11.48 cm)
1.34 in
(3.40 cm)
1 4
2 53
4 •RS-232 Isolator: CSP-RS232I Operations & Installation Guide – DOC. 6634A

Crestron CSP-RS232I RS-232 Isolator
Connectors, Controls & Indicators
# CONNECTORS1,
CONTROLS &
INDICATORS
DESCRIPTION
1 DEVICE
1
9
(1) DB9 male, isolated bidirectional
RS-232 pass-thru port;
Passes RX, TX, RTS, and CTS
signals;
Supports up to 115.2k baud
PIN DESCRIPTION
1 No Connection
2 RX; Input from device’s TX
output
3 TX; Output from device’s RX
input
4 No Connection
5 Isolated Signal Ground
6 No Connection
7 RTS; Output from device’s
CTS input
8 CTS; Input from device’s RTS
input
9 No Connection
Shell No Connection
(Continued on following page)
Operations & Installation Guide – DOC. 6634A RS-232 Isolator: CSP-RS232I •5

RS-232 Isolator Crestron CSP-RS232I
Connectors, Controls & Indicators (Continued)
# CONNECTORS1,
CONTROLS &
INDICATORS
DESCRIPTION
2 CONTROL
SYSTEM
1
9
(1) DB9 female;
Connection to any Crestron COM
port (supports RS-232 only);
6 ft (1.83 m) interface cable
included
PIN DESCRIPTION
1 No Connection
2 RX; Output to control
system’s RX input
3 TX; Input to control system’s
TX output
4 No Connection
5 Signal Ground
6 No Connection
7 RTS; Input to control system’s
RTS output
8 CTS; Output to control
system’s CTS input
9 No Connection
Shell Ground
3 PWR LED (1) green LED, indicates 12 or 24
Volt DC power supplied to unit
4 GROUND (1) 6-32 screw, chassis ground lug;
(Continued on following page)
6 •RS-232 Isolator: CSP-RS232I Operations & Installation Guide – DOC. 6634A