Tech Works ICR-116 Installation Manual

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The ICR-116 Intercom Switching Relays are ruggedized intercom panels for use in harsh environments, such as correctional facilities. The ICR-116 provides high quality audio communication with complete flexible control. The unit has connections for 16 remote intercom Stations, each with their own Speaker and Call-in Switch. The Call-In and Relay Control connections are each 24-pin ribbon connectors.

A jumper option supports either Sinking or Sourcing Relay Drivers. Another Jumper Option allows the Call-in switches to be referenced to the Logic or Relay Power Source.

For convenience, all of the ICR-116 connections are connectorized. Remote Stations connect via 4-pin 0.1” Spring Cage Euro-Style Barrier Strips. Connections for Power, Intercom Amplifier, and Paging Amplifier, are Screw Terminal Euro-Style Barrier Strips.

Associated with each Station Selection Relay is a Station Status Indicator. The Station Indicators show the Technician which relay or relays are active. The indicators are intuitive, and easily interpreted. Each Station Indicator is either Off or On. When an Indicator is Off, there is no activity with that station. When an Indicator is On, that Station is selected for Communication.

Another product, the ICR-116EX, has a multipin connector on the opposite side of the PCB for access to the normally closed relay contacts. By using the “Back Contacts”, multiple masters or priority switching can be achieved.

In applications where a more powerful Paging Amplifier is required, a Paging Relay(s) connects Selected Station(s) to a Paging Amplifier Output, such as the Tech Works PA-

402.

ICR-116

Intercom Relay 16 Channel

Installation Manual

Specifications:

 16 Double Pole/Double Throw station

audio relays

 2 Double Pole/Double Throw page

audio relays

 Relay Current 15MA  Maximum Station Audio Power; 50

Watts @ 25 Volts

 Maximum Paging Audio Power; 100

Watts @ 25 Volts

Color:

Grey powder coated metal chassis

Power:

24VDC, 0.3A, (Power Supply not included)

Weight:

5 lbs.

Dimensions:

19” W X 1.75” H X 8.6”D

Optional Accessories:

ICA-202D

Dual Channel Intercom Amplifier

DODC

Detention Operator Desk Console

PA-402

Paging Amplifier

ICR-44

Intercom Routing Relays

RC-24-10

Ribbon Cables

RC-BB-24

Screw Terminal Breakout Boards

BENEFITS

 Designed Specifically for

Corrections

 High Quality Audio

 Options Designed for

Corrections Industry

 Engineered & Built in U.S.A.

 36-month Limited Warranty

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Connectors and Function:

Station Connectors (1-16)

Page

Amp

Relay

Select

Call

Input

Power

Station Connectors, 1-16, Euro-Style Barrier Strips (Pin 1, Left):

SPKR (+)

SPKR (-)

CALL COMMON / SHIELD

CALL SWITCH

SPKR connect to the Wiper of the Station Relays CALL COMMONs tie together, and go to the CALL SIGNAL CONNECTOR

Page Connector, Euro-Style Barrier Strip, (Pin 1, Left):

Amplifier OUT(+)

Amplifier OUT (-)

The Paging Amplifier is connected to the selected Stations when the Page Relay is selected

Intercom Amplifier Connector, Euro-Style Barrier Strip, (Pin 1, Left):

Remote SPKR (+)

Remote SPKR (-)

The Intercom Amplifier is connected to Stations when their Respective Station Relay is Selected

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Relay Select Connector, 24 Pin Ribbon Wire Header, (Pin 1, Top-Right):

13579

1517192123

Ribbon Cable Color

Yellow

SELECT-1

1 2 SELECT-2

Orange

Red

SELECT-3

3 4 SELECT-4

Brown

Black

SELECT-5

5 6 SELECT-6

White

Gray

SELECT-7

7 8 SELECT-8

Violet

Blue

SELECT-9

SELECT-10

Green

Yellow

SELECT-11

SELECT-12

Orange

Red

SELECT-13

SELECT-14

Brown

Black

SELECT-15

SELECT-16

White

Gray

SELECT-PAGE

N/C

Violet

Blue

N/C

Green

Yellow

(Return) -24 VDC

-24 VDC (Return)

Orange

Red

(Return) +24 VDC

+24 VDC (Return)

Brown

*NOTE: For Source Drivers, “-24 VDC” is the circuit Return

For Sink Drivers, “+24 VDC” is the circuit Return

The Intercom Amplifier is connected to Stations when their Respective Station Relay is Selected. The Paging Amplifier is connected to Unselected Stations when the Call Relay is energized.

Call Signal Connector, 24 Pin Ribbon Wire Header (Pin 1, Top-Right):

Ribbon Cable Color

Yellow

CALL-1

1 2 CALL-2

Orange

Red

CALL-3

3 4 CALL-4

Brown

Black

CALL-5

5 6 CALL-6

White

Gray

CALL-7

7 8 CALL-8

Violet

Blue

CALL-9

CALL-10

Green

Yellow

CALL-11

CALL-12

Orange

Red

CALL-13

CALL-14

Brown

Black

CALL-15

CALL-16

White

Gray

N/C

Violet

Blue

N/C

Green

Yellow

CALL COMMON

Orange

Red

+24 VDC

Brown

The CALL-X signal is connected to CALL COMMON, when its respective switch is closed

Power Connectors, Euro-Style Barrier Strip, (Pin 1, Left):

+24 VDC input (Return)

-24 VDC input (Return)

CALL COMMON

CHASSIS

*NOTE: For Source Drivers, “-24 VDC” is the circuit Return

For Sink Drivers, “+24 VDC” is the circuit Return See “Jumper Options” for Details

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Jumper Options:

The ICR-116 has two sets of Configuration Jumpers to accommodate various PLC Control Options. Both sides of the Relay Power Supply are connected to the ICR-116. When the Power Supply is

connected properly, the Power Indication should be lighted Green.

CALL COMMON SELECT:

CALL COMMON is connected to all Station Connectors - Pin 4 and Pin 3 of the Power Connector. The CALL COMMON may be referenced to either Power Supply rail, allowed to float, or referenced to an external “Common”.

In most Installations, the CALL COMMON is referenced to the Relay Power Supply. For Convenience the Jumper may be in either Position:

+24 VDC CALL COMMON is connected to the +24 VDC Relay Power Supply Rail

-24 VDC CALL COMMON is connected to the -24 VDC Relay Power Supply Rail

If the CALL COMMON Jumper is removed, the CALL COMMON pin on the POWER Connector floats and may reference to any source.

RELAY COMMON SELECT:

The Relay SELECT-X lines may be reference to either Rail of the Relay Power Supply

+24 VDC Sinking Drivers, Relay indicators will light Green when a relay is energized

-24 VDC Sourcing Drivers, Relay indicators will light Red when a relay is energized

NOTES:

CALL COMMON is connected to CHASSIS with a 1MEG-Ohm resistor

-24 VDC is connected to CHASSIS with another 1MEG-Ohm resistor The +24VDC has a 500MA Resettable Fuse for the Relays The +24VDC has another 500MA Resettable Fuse for the SELECT & CALL Connectors

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Application Notes:

Please refer to the schematic for a better understanding of this section. Refer to the ICA-202D Intercom Amplifier installation manual, (For application examples see pages 24 & 25). Refer to the PA-402 Power Amplifier installation manual.

The ICR-116 is suitable for any Intercom System requiring Multiple Station Selection. However, these examples refer to use with other Tech Works products.

Each Station consists of a Speaker, which is also used as a Microphone (Half-Duplex Operation) and a Call-In Switch.

Stations are selected by energizing that Stations Relay Some control systems have Sinking Relay Drivers (Pull to Ground), while other control systems have

Sourcing Relay Drivers (Pull to +24Volts). The ICR-116 accommodates either type driver (See Jumper Options).

When the Relay is energized, the Intercom Amplifier is connected to that Station’s Speaker.

When a Relay is not energized, the Station Speaker is terminated by two 200-Ohm resistors tied to COMMON. The Termination serves two purposes; reducing crosstalk, bleeding off static electricity.

When listening normally, only one relay is energized at a time. However, during (Zone) Paging, many or all relays may be energized simultaneously.

When stations are selected, good design practice sequences the Intercom Amplifier to avoid listening Pops. The ICA-202 has a Mute input, which simplifies this implementation. The selection sequence is Mute Intercom, Select Station, wait ~100mS, Un-Mute Intercom. The de-selection sequence is Mute Intercom, De-Select Station. The new selection sequence is Mute Intercom, Select new Station, wait ~100mS, Un-Mute Intercom.

Station Call-in Switches have a Common Return

The Call-In Switches are separate circuits from the audio pathways. Some control systems Reference the Call-In Switched to the Relay Power Supply Negative Rail. Some control systems Reference the Call-In Switched to the Relay Power Supply Positive Rail. Some control systems Reference the CallIn Switched to a Logic (PLC) reference. The ICR-116B accommodates any type of reference (See Jumper Options).

The Paging Relay(s) may be used in systems where the Intercom Amplifier has insufficient Power

When the Paging Relay(s) are energized, selected Stations are connected to the Paging Amplifier output. This is especially easy to implement using Tech Works Intercom Products. The ICA-202D “Paging Audio Output” connects to the PA-402 Paging Amplifier “Paging Audio Input”. The ICA-202D and PA-402 Page Logic control inputs are tied together. The PLC Energizes the Page & Station Relays, and then pulls the Page Logic inputs to Common.

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Schematic Diagram:

ICR-116B-1 SCHEMATIC DIAGRAM

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System Accessories

DODC-1 - Operator Desk Console - This all steel console with brushed stainless

steel faceplate and vandal resistant push buttons has an epoxy finished cold rolled steel base, a permanently attached gooseneck microphone provides clear, high quality page and intercom talk while a vandal resistant 3 inch speaker provides clear listening.

DODC-2 - Operator Desk Console - This all steel console with brushed stainless steel faceplate and vandal resistant push buttons has an epoxy finished cold rolled steel base, a hidden flush mount microphone provides clear, high quality page and intercom talk while a vandal resistant 3 inch speaker provides clear listening.

ICA-202D - Intercom Amplifier - 20 watts of clean audio power at 25-Volts it can do both the Intercom and most Paging functions. Automatic Level Control (ALC) assures the speaker level remains constant over a wide dynamic input range.

RC-24-* and RC-BB-24 - 24-pin Ribbon Cable and Breakout Board - Designed to connect our Tech Works Intercom Relay panels with digital control equipment. The RC-24-* is available in various lengths (10 feet standard). The breakout board has

mounting tabs for screw mounting wherever convenient.

ICR-44 - Intercom Relay Module 4x4 - Tech Works makes a variety of intercom Relay modules for routing audio and calls in signals. The ICR-44 is a snap track mount 4 relay assembly designed to allow multiple master audio routing by a PLC.

VPSS - Vandal Proof Speaker Station - a call-in station with integral speaker/micro- phone and momentary, normally open, push-to-call button. The faceplate is a 2 gang electric box mount, 12 gage, brushed stainless steel with security screens mounted between the faceplate and the loudspeaker. Tamper-

resistant hardware is included.

PA-402 Paging Amplifier - designed to add Power to the ICA-202D. It delivers 40 Watts to 25 Volts loads at very low noise and distortion. Perfect for Prisons or Security applications when covering large areas or All Page.

PS2437A - Power Supply - 24V DC @ 3.7 Amps - is a regulated computer grade power supply. This unit is UL listed and includes a 6-foot removable power cord with a North American standard Edison connector. Includes wall mount bracket.

Visit www.tech4people.com/catalog/products for a catalog of all Tech Works products and accessories. If you don’t see something that you need be sure to contact us, we regularly fill special request orders.

06/2016

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