Clear-Com Tempest 900 Specifications Page 60
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54 Tempest®900 4-Channel Wireless Intercom System
2-Wire Wiring Schemes
Wiring schemes vary, and it is important to ensure that the cables are wired correctly for proper system operaon. When
Tempest is congured for a parcular manufacturer’s system, Tempest routes the signal to internal circuitry that conforms
to the requirements of that system. The 3-pin XLR connectors on the back of the Tempest BaseStaon can have very
dierent characteriscs depending on the seng of the slide switch, as can be seen in the table below.
3-Pin Wiring Scheme and Line Characteriscs
1 2
1
1
2
2
3
Clear-Com
AudioCom
RTS
1 COMMON
2 POWER
3 AUDIO
1 COMMON
2 AUDIO(-) & POWER
3 AUDIO(+) & POWER
1 COMMON
2 AUDIO 1 & POWER
3 AUDIO 2
MALE
MALE
MALE
Input Impedance 200Ω
Output Level 1.0 Vrms
Bridging Impedance >10 kΩ
Call Signaling:
Send 12 ±3 VDC
Receive 4 VDC Min
Power voltage 30.0 VDC
Input Impedance 300Ω
Output Level 1.0 Vrms
Bridging Impedance >10 kΩ
Call Signaling:
Send 20 kHz ±100 Hz, 5 mVrms
Receive 20 kHz ±800 Hz, 100 mVrms
Power voltage 24.0 VDC
Input Impedance 200Ω
Output Level 0.775 Vrms
Bridging Impedance >10kΩ
Call Signaling:
Send 20 kHz ±100 hz, 240 mVrms
Receive 20 kHz ±800 Hz, 100 mVrms
Power voltage 28.0 VDC
3
3
Note for 2-Wire RTS Users: RTS TW (2-Wire) systems support two intercom channels on a single XLR cable. When connecng
an RTS TW system, only one cable is required for two intercom channels. When set to RTS mode, both of the 3-PIN XLR
connectors (2 male and 2 female) for channels A&B and C&D are paralleled together. RTS intercom channel 1 is placed on
Tempest intercom channel A, and RTS channel 2 is placed on channel B.; RTS intercom channel 1 is placed on channel C and
RTS channel 2 is placed on channel D.
Note for 2-Wire Clear-Com and Balanced (Audiocom) Users: For Clear-Com and Balanced 2-Wire intercoms, use the A, B, C,
and D male or female 3-pin (XLR-3M/F) connectors on the rear panel to connect up to four intercom channels. The male and
female connectors for each channel are loop-through connecons and are the same point electrically. Each channel of a Clear-
Com or Balanced 2-Wire system requires one separate cable for connecon to one Tempest channel.
- 399G079 Rev A 11-July-2014 1
- Thank you from Clear-Com 3
- Document Reference 4
- Legal Disclaimers 4
- Clear-Com Contacts 4
- Table of Contents 5
- Important Safety Instrucons 7
- A/C Power Warning 8
- Baery Safety 9
- Maintenance and Care 10
- Quick Start Guide 12
- Theory of Operaon 14
- What’s In The Box 16
- XLR-3M/F for 2-Wire 17
- RJ-45 to RJ-12 Adapter 17
- BaseStaon Overview 18
- 8- Menu Buon 19
- 9- Enter Buon 19
- 10- Buons 1 - 5 19
- 7- Volume Control 19
- Front Panel Right 20
- Rear Panel Le 22
- Rear Panel Right 23
- 7- Relay Connector 24
- 8- Antenna Connector 24
- BeltStaon Overview 25
- Talk Buon A/B and C/D 27
- Transceiver Controls 28
- BaseStaon Setup 29
- Power Connecons 30
- Powering ON the BaseStaon 30
- Antenna Locaon 31
- Antenna Conguraons 32
- Remote Transceiver 33
- Congure the BaseStaon 35
- Adjust Sidetone 36
- Selecng a Frequency Band 36
- Name Each Staon 39
- Front Panel Lock 41
- Call Funcon 41
- Stage Announce (SA) 41
- GPO Relay Contacts 42
- Acve Channel Relay 42
- Auxiliary Output 43
- Reset Memory 43
- BaseStaon Menu 44
- BeltStaon Setup 45
- Power Opons 47
- BeltStaon Power ON/OFF 47
- Pairing with a BaseStaon 48
- Name Equipment 49
- Personal Preferences 49
- Program Volume Control 50
- Set Mic Gain 51
- Single Channel Mode 51
- Wireless ISO 52
- BeltStaon Menu 53
- Controls 55
- RJ-45 Jacks 56
- 2-Wire (Party-Line) Interface 57
- Auto-Null Explained 58
- Auto-Null Procedure 58
- Test for Echo 58
- Manual Null 59
- Other Causes of Echo 59
- 2-Wire Wiring Schemes 60
- Modes of Operaon 61
- Split Mode 62
- Connecng Mulple BaseStaons 63
- Accu-Sync 66
- Master Mode 67
- Note: The LQ value being 68
- How Do I …? 70
- Use the Transceiver 72
- Troubleshoong 74
- BeltStaon 76
- Tempest Remote Transceiver 77
- Default Sengs 78
- Tempest Part Numbers 79
- System Features 80
- 900 MHz System Specicaons 81
- BaseStaon Specicaons 82
- BeltStaon Specicaons 83
- Glossary 85
- Mini-USB-B 87
- Radio Compliance 88
- Limited Warranty 90
- Technical Support 92
- Tempest Block Diagram 96
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