Clear-Com TEMPEST 2400 Spécifications Page 45

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Clear-Com Communication Systems Page 45 of 100
Tempest 2400 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
operation. When Tempest is configured for a particular 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 base station can have very different characteristics depending on the setting of the
slide switches, as can be seen in the table below.
3-Pin Wiring Scheme and Line Characteristics
12
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 200
Output Level 1.0 Vrms
Bridging Impedance >10 k
Call Signaling:
Send 12 ±3 VDC
Receive 4 VDC Min
Power voltage 30.0 VDC
Input Impedance 300
Output Level 1.0 Vrms
Bridging Impedance >10 k
Call Signaling:
Send 20 kHz ±100 Hz, 5 mVrms
Receive 20 kHz ±800 Hz, 100 mVrms
Power voltage 24.0 VDC
Input Impedance 200
Output Level 0.775 Vrms
Bridging Impedance >10k
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 connecting an RTS TW system, only one cable is required for two intercom channels. When
set to RTS mode all four of the 3-PIN XLR connectors (2 male and 2 female) for channels A&B (or C&D)
are paralleled together. RTS intercom channel 1 is placed on Tempest intercom channel A (or C) and RTS
channel 2 is place on channel B (or 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 4 intercom channels. The male and female connectors for each channel are loop-through
connections and are the same point electrically. Each channel of a Clear-Com or Balanced 2-Wire system
re
q
uires one se
p
arate cable for connection to one Tem
p
est channel.
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