Rane CP 31 Manuel utilisateur

CP 31

COMMERCIAL PROCESSOR

Data Sheet-1

Gated Paging Circuit Features

• Mic/Line Selection with Gain Trim

• High and Low Cut Filter Switch

• Adjustable Detector Threshold with Active LED

• Independent Paging Level Controls

Zone Output Features

• Level Control

• Ducker On/Off with Depth Control

Special Features

• Page Initiated Program Ducking

• Page/Program Expansion with Level Control

• UL/CSA/CE and 100/120/230 VAC Remote Power Supplies

General Description

The CP 31 is a single-page, single-zone stereo or dual-

mono commercial preamplifier for the small restaurant,

lounge, retail boutique, small office or manufacturing facility.

System designers now have three choices in Commercial

Processors from Rane to fulfill their paging needs – the CP 31

and its bigger brothers the CP 52 & CP 64.

The CP 31 provides Page Ducking for its single stereo

Program Input. One stereo or two completely independent

mono Zones are served. The Page signal can be independently

assigned to either of the two Outputs.

The Paging Input section includes a balanced Euroblock

Input connector, Mic/Line switch, Trim control, ganged/

switchable High/Low Cut Filters (fixed at 100 Hz & 7 kHz),

gating with adjustable Detect Threshold, Active and Overload

LEDs, Page Assign (Off, A, B or Both) and independent Page

Levels for the two Outputs, A & B. The Page signal is

summed “post-zone level” as shipped from the factory, so

Paging levels remain independent of the Zone Output Level.

Internal Paging Pre/Post Zone Level switches allow the

Paging signal to be summed pre-Zone Level for mic/line

mixing.

The Program Input section includes a stereo RCA (unbal-

anced) Input, Mono switch, and Level trims.

The Zone Output section features adjustable Ducker

Depth with an On/Off switch independent for each program

input. The Zone Outputs have independent front panel Level

controls and 3 segment level meters.

The Expand output allows Page or mono Program signals

to feed an additional location or device for system expansion.

The Expand Output has its own rear panel Level trim.

The CP 31 is the least complex and least expensive of

Rane’s Paging products which include the CP 52 and CP 64.

The CP 31 is also perfect for zone expansion of Rane CP-

based systems. Simply connect the CP 52 or CP 64 Page or

Program Expand Outputs to a CP 31 to add an extra Zone

(with its own page, program, both or neither).

DATA SHEET

CP 31

COMMERCIAL PROCESSOR

Data Sheet-2

Parameter Specification Limit Units Conditions/Comments

MIC/LINE PAGING INPUT

..........Input Type Balanced Instrumentation amplifier

..........RFI Filter Yes

..........Gain Range +30 to +60 2 dB Continuously adjustable

..........Frequency Response 30 to 40k typ Hz Maximum gain, +0, -3 dB

..........Input Referred Noise -125 1 dBu Gain: 60 dB, Rs:150 ohms, BW: 20 kHz

..........CMRR 40 min dB 20 Hz to 20 kHz

..........THD+N 0.05 0.01 % Gain: 30 dB, +4 dBu out, 1 kHz, BW: 80 kHz

..........“Mic”Input Impedance 500 1% ohms Each leg to ground

..........Line Pad 30 1 dB

..........“Line”Input Impedance 14.5k 1% ohms Each leg to ground

..........Signal Detector Range -



(on) to +4 typ dBu Continuously adjustable

..........Signal Detector Attack 10 typ msec Fixed; 10 dB overdrive

..........Signal Detector Release 3 typ sec Fixed

..........Overload Detector +16 1 dBu 4 dB before clipping

..........Low Cut / Hi Cut Filters 100 & 7k 5% Hz Selectable In/Out

PROGRAM INPUT Stereo

..........Input Type Unbalanced RCA connector

..........Input Level Adjust Off to 0 dB

..........Frequency Response 10 to 50k typ Hz +0, -3 dB

..........Input Impedance 10k 1% ohms

OUTPUTS

..........Type Balanced Euroblock connector

..........Zone Out Gain: Program In 12 1 dB

...............From Page Inputs 6 1 dB

..........Expand Out Gain 6 1 dB From Page or Program Input

..........Frequency Response 10 to 50k typ Hz +0, -3 dB

..........S/N 90 min dBr re +4 dBu; BW: 20 Hz-20 kHz

..........THD+N 0.05 0.01 % +4 dBu, 1 kHz, BW: 80 kHz

..........Crosstalk -80 max dB 1 kHz, Rs: 25 ohms, (L/R)

..........Output Impedance 100 1% ohms Each leg

..........Maximum Output 24 typ dBu Load: 2k ohms

..........Peak Meter -10, +4, +16 ±2 dBu Peak reponse

..........Ducker: Depth Range 50 to 6 typ dB Continuously adjustable

Features and Specifications

Exposure to modulated RF and electromagnetic fields as specified in CE EMC standard EN55103-2 results in worst case

THD+N of 0.34% (quasi-peak, A-weighted, 22-22k Hz) with a signal level of +4 dBu @ 1k Hz.

CP 31

COMMERCIAL PROCESSOR

Data Sheet-3

CP 31 Block Diagram

Parameter Specification Limit Units Conditions/Comments

UNIT: Agency Listing

..........120 VAC model Class 2 Equipment National Electrical Code

UL Exempt Class 2 equipment

CSA Exempt Class 2 equipment

..........230 VAC model CE-EMC EMC directive 89/336/EEC

CE-Safety Exempt per Article 1 of LVD 73/23/EEC

POWER SUPPLY: Agency Listing RS 1 (see data sheet) Class 2 Equipment

..........120 VAC model UL File No. E88261

CSA File No. LR58948

..........230 VAC model CE-EMC EMC Directive 89/336/EEC

CE-Safety LV Directive 73/23/EEC

Power Supply Requirements 18 VAC w/ center tap 10% Vrms

Maximum Current 750 mA RMS current from remote supply

UNIT: Construction All Steel

..........Size 1.75" H x 19" W x 8.5" D 1U (4.4 cm x 48.3 cm x 21.6 cm)

..........Weight 5 lb (w/o power supply) (2.3 kg)

SHIPPING: Size 4.5" x 20.3" x 13.75" (11.5 cm x 52 cm x 35 cm)

..........Weight 9 lb (4.1 kg)

Note: 0 dBu = 0.775 Vrms

30 dB

PAD

LINEMIC

TRIM

30 to 60 dB

OVERLOAD

ACTIVE

PAGE DETECT THRESHOLD

+4 dBuON

PAGE ASSIGN

DUCKER

BAZONE

LEVEL

+6 dB

MONO

6 dB60 dB

PROGRAM INPUTS

LEFT

PAGING INPUT

ZONE

OUTPUT

HIGH / LOW

OUT

RIGHT

PROGRAM

LEVEL

100 Hz 7k Hz

B DUCKER

MONO PROGRAM

+6 dB

EXPAND

OUTPUT

PAGE

PROGRAM

CUT FILTER

RIGHT

EXPAND

LEVEL

B DUCKER DEPTH

A DUCKER DEPTH

ON OFF

A DUCKER

ON OFF

PAGE

LEVEL

PAGE

LEFT

PROGRAM

LEVEL

+16

-10

+16

-10

PRE

POST

LEVEL

PAGE

PRE

POST

+6 dB

INTERNAL CONTROL

dBu

CP 31

COMMERCIAL PROCESSOR

Data Sheet-4

©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL (425)355-6000 FAX (425)347-7757 WEB http://www.rane.com

All features & specifications subject to change without notice. DOC 103137 PN 09564 7-99

Available Accessories

• SC 1.7 Security Cover (full front panel)

Architectural Specifications

The CP 31 Processor shall provide a gated paging input

and two line-level program inputs. One stereo zone with a

balanced output shall be served. A port with independent

level control shall be provided for mono expansion of page or

program signals.

The page input shall use a 3-pin Euroblock connector.

Fully adjustable paging controls shall include page Level, 30

dB mic/line input pad plus 30 dB gain trim, detect threshold

control, and a high/low cut filter switch.

The program input shall have stereo RCA jacks, indepen-

dent level controls, and a mono switch.

Zone outputs shall use a 5-pin Euroblock connector. Zone

controls shall include a switchable ducker with depth control,

independent fpr Zone outputs A and B.

The unit shall be exempt from agency safety requirements

and powered from a Rane RS1, UL listed, CSA certified

remote power supply (meeting CE-EMC requirements for 230

VAC). The chassis shall be constructed entirely from cold-

rolled steel, and mount into a standard EIA relay rack

occupying one rack space. Reliability and efficiency are to be

primary design considerations.

The unit shall be a Rane Corporation CP 31 Commercial

Processor.

Rear Panel and Example System Diagram

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