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Vitec Group Communications
CCI-22 Dual Channel Party-Line Interface Instruction Manual

2 - 7

TO CONNECT “RTS” 2-CHANNEL 2-WIRE 
PARTY-LINES

Stations on RTS 2-channel 2-wire party lines are connected with 
2-conductor shielded cable.  One of the two shielded conductors 
carries both the DC power and the audio signal for one channel, while 
the other conductor carries audio only providing two channels per 
cable. The shield is a common ground for both channels. The matrix 
can be connected to a 2-channel 2-conductor “RTS” line using the 
CCI-22’s two channels. The CCI-22 does not support RTS call signals.

Power to the CCI-22’s channels must be provided by the external party 
line. The power connection for each channel is the “+30 VDC Power” 
pin on the appropriate DB9-M Interface I/O connector on the 
rear-panel assembly. When connected to an RTS system, each 
channel’s power input circuit will filter out the audio signal on the RTS 
line.

Figure 2-7: Connection Diagram of CCI-22 DB-9 to RTS XLR

Audio is fed to each CCI-22 channel via the “audio” pin on the 
appropriate DB9-M Interface I/O connector on the rear-panel 
assembly. When connected to an RTS system, each channel’s audio 
input circuit will filter out the DC power on the RTS line.

The Clear-Com/RTS pin must be grounded when a CCI-22 party-line 
channel is connected to an RTS party line. Leaving this pin floating 
selects “Clear-Com” mode, which is incompatible with RTS party lines.

The termination jumper of each CCI-22 channel must be set to “B” 
(termination disabled).

CCI-22 channels can be connected to RTS party lines in a variety of 
configurations, depending on how the power and grounds are 
connected between the party line and the CCI-22 channel. The 
following sections describe the options.

CC/RTS

GND Chan-1

+30 VDC Power

Chan-1 AUDIO

NA

CC/RTS

GND Chan-2

+30 VDC Power

Chan-2 AUDIO

1

2

3

4

5

6

7

IMF-3/CCI-22

DB9

RTS-TW

XLR

1

2

3

GND

+VDC/Ch-1 AUDIO

Ch-2 AUDIO

Содержание ECLIPSE MATRIX

Страница 1: ...CCI 22 DUAL CHANNEL PARTY LINE INTERFACE INSTRUCTION MANUAL CLEAR COM ECLIPSE...

Страница 2: ...age Parkway Alameda CA 94501 U S A Vitec Group Communications Ltd 7400 Beach Drive IQ Cambridge Cambridgeshire United Kingdom CB25 9TP Vitec Group Communications Room 1806 Hua Bin Building No 8 Yong A...

Страница 3: ...eral Discussion 2 2 Two Separate Party Lines 2 3 Multiple Clear Com Beltpack Channels from One Power Supply 2 4 To Connect RTS 2 Channel 2 Wire Party Lines 2 7 Power from Channel A Line Only 2 8 Two I...

Страница 4: ...Vitec Group Communications CCI 22 Dual Channel Party Line Interface Instruction Manual ii Liability W iii...

Страница 5: ...such as candles on or near a CCI 22 dual channel party line interface 4 Only use attachments accessories specified by Clear Com Intercom Systems 5 Unplug the CCI 22 dual channel party line interface d...

Страница 6: ...OPEN This symbol alerts you to the presence of uninsulated dangerous voltage within the product s enclosure that might be of sufficient magnitude to constitute a risk of electric shock Do not open th...

Страница 7: ...eceive level controls are included on the front panel The CCI 22 features sophisticated sidetone nulling circuitry The CCI 22 occupies one slot in an IMF 3 or IMF 102 interface module frame Connection...

Страница 8: ...following procedure A lack of 2 wire rejection will affect the sound of the operator s own voice in his or her headset In interfaces it is necessary to null minimize the rejection when an external par...

Страница 9: ...g either with the wiring in the external party line or with one of the other devices attached to the external party line Steps 5 through 9 are troubleshooting hints 5 If the R control is turned fully...

Страница 10: ...Vitec Group Communications CCI 22 Dual Channel Party Line Interface Instruction Manual 1 4...

Страница 11: ...nation is normally provided by the component powering the party line Although the CCI 22 is not designed to supply power to an external party line system each channel of the CCI 22 features a Clear Co...

Страница 12: ...se connectors Both DB 9Ms are paralleled such that both party line channels are available on each connector It is possible to wire one DB 9 connector as channel 1 the second DB 9M as channel 2 or brin...

Страница 13: ...s incompatible with Clear Com party lines TWO SEPARATE PARTY LINES The diagram in Figure 2 2 shows the CCI 22 s two channels connecting two independent external party lines to the matrix Each external...

Страница 14: ...upplies have a switch to enable or disable the termination circuits from each of its outputs If using such a supply 1 Disable the terminations by using the switch 2 Connect the PS 702 output to all of...

Страница 15: ...page 2 5 In this configuration only the power supply channel s power and ground lines are connected to the party line Note Do not connect the power supply output s terminated audio line to the party...

Страница 16: ...intercom channel while beltpacks 2 and 4 are on the other Party Line intercom channel 6 7 8 9 1 2 3 4 5 2 3 1 2 3 1 Two 0 01 uF 7 in 18 gauge wire Spade Lug to Chassis Ground on IMF 3 Beltpack 1 XLR B...

Страница 17: ...l s power input circuit will filter out the audio signal on the RTS line Figure 2 7 Connection Diagram of CCI 22 DB 9 to RTS XLR Audio is fed to each CCI 22 channel via the audio pin on the appropriat...

Страница 18: ...nnector with one non Clear Com channel powering both interfaces seen from the Cable Side of the Connectors Figure 2 8 Cable Wiring Connection for Two RTS Party Line Channels to the CCI 22 6 7 8 9 1 2...

Страница 19: ...including the grounds Figure 2 9 Cable Wiring Connections between Two Isolated RTS Party Line Channels When wiring the DB 9 to XLR ensure that the power and audio line is only wired to pin 2 while the...

Страница 20: ...he front panel When the earphone is plugged in it automatically switches on a test tone and monitors the output of the null circuit Separate R resistance L inductance and C capacitance controls compen...

Страница 21: ...L control compensates for the low frequency inductive and capacitive elements the wiring of the external party line presents to the line If the L control is fully turned in either direction it is like...

Страница 22: ...Vitec Group Communications CCI 22 Dual Channel Party Line Interface Instruction Manual 2 1 2...

Страница 23: ...iption Qty C103 C203 39pF Ceramic Disc 50V 5 2 C111 C127 C211 C227 47pF Ceramic Disc 50V 10 4 C112 C212 100pF Monolithic 50V 20 2 C102 C110 C202 C210 470pF Ceramic Disc 50V 10 4 C117 C217 0 01uF Ceram...

Страница 24: ...R247 3 3K OHM 1 4 Carbon Film 5 4 R148 R248 4 3KOHM1 4Carbon Film5 2 R108 R113 R142 R208 R213 R242 4 7K OHM 1 4 Carbon Film 5 6 R151 R251 5 6K OHM 1 4 Carbon Film 5 2 R115 R215 8 2K OHM 1 4 Carbon Fi...

Страница 25: ...205 Q207 Transistor 2N2222 NPN 30V 4 Q103 Q203 Transistor2N4401 NPN 40V 2 Q108 Q109 Q110 Q111 Q208 Q209 Q210 Q211 Transistor J174 JFET PCHAN 8V VGS 8 Q106 Q206 Transistor MPS A13 NPN 30V DARL 2 Q101 Q...

Страница 26: ...C214 39 pF Ceramic Disc 50V 5 2 C103 C203 180 pF Monolithic 50V 2 C102 C202 200 pF Ceramic Disc 50V 10 2 C101 C201 470 pF Ceramic Disc 50V 10 2 C106 C109 C206 C209 820 pF Ceramic Disc 50V 10 4 C112 C2...

Страница 27: ...m 5 2 R115 R215 47K OHM 1 4 Carbon Film 5 2 R104 R105 R204 R205 47 5K OHM 1 8 Carbon Film 1 4 R118 R218 51K OHM 1 4 Carbon Film 5 2 R117 R217 200K OHM 1 4 Carbon Film 5 2 R107 R207 220K OHM 1 4 Carbon...

Страница 28: ...Vitec Group Communications CCI 22 Dual Party Line Interface Instruction Manual 3 6 DIAGRAMS Figure 3 1 Block Diagram CCI 22 Interface...

Страница 29: ...R242 R241 R241 R240 R240 R239 R239 R238 R238 R235 R235 R216 R216 R215 R215 R214 R214 C226 C226 R258 R258 R243 R243 R236 R236 R233 R233 R213 R213 R212 R212 JP200 JP200 B A Q203 Q203 C203 C203 C204 C204...

Страница 30: ...Vitec Group Communications CCI 22 Dual Party Line Interface Instruction Manual 3 8 Figure 3 3 Assembly Drawing CCI 22 Main PCB Part No 710215...

Страница 31: ...dB Call Signal Input Clear Com Mode Threshold 4 VDC on Audio Line Call Signal Output Clear Com Mode Level 11 VDC Minimum on Audio Line Nulling Capability Line Length 0 to 4000 ft 1200m Line Impedance...

Страница 32: ...s makes every attempt to maintain the accuracy of the information contained in its product manuals that information is subject to change without notice Performance specifications included in this manu...

Страница 33: ...warranty of 90 days Headsets handsets microphones and spare parts have a limited warranty of one year UHF wireless IFB products have a limited warranty of one year UHF wireless intercom systems have...

Страница 34: ...ailures use the following contact information Europe Middle East and Africa Tel 44 1223 815000 Email SalesSupportEMEA vitecgroup com North America Canada Mexico Caribbean US Military Tel 1 510 337 660...

Страница 35: ...NOT APPLY TO YOU IN ANY EVENT TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW VGC S LIABILITY TO CUSTOMER HEREUNDER SHALL NOT UNDER ANY CIRCUMSTANCES EXCEED THE COST OF REPAIRING OR REPLACING AN...

Страница 36: ...Vitec Group Communications Warranty i v...

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