Telex C-2000HS - Battery Backup; Earth Ground; Data Port; Specifications

10 Introduction C-2000 and C-2000HS Technical Manual
Bosch Security Systems, Inc. Technical Manual F.01U.174.927 Rev 03
Battery Backup
The +12V power input on the AUX Port is used for Battery Backup and is a diode-protected input.
Earth Ground
The Earth Ground connection on the AUX Port must be connected for proper operation. It provides a path for any external
noise to be shunted to.
Data Port
The Data Port is a 0 V to 10V asynchronous port used for cloning one (1) C-2000 to another. The cable is not supplied but the
connector is. To connect two (2) units, RX on one (1) console should be connected to TX of the other console. Ground is
connected straight through. This is a non-standard serial port used only for the C-2000 cloning function.
Specifications
NOTE: Specifications are subject to change with out notice.
Sequential Tone Line Input and Output Impedance:
2-Wire: 600 or 10K Ohms, jumper selectable, transformer isolated.
4-Wire TX Line: 600 Ohm or 1 Megohm, jumper selectable, transformer
isolated.
4-Wire RX Line: 600 or 10K Ohm jumper selectable, transformer
isolated.
Local Control Keying: Relay rated at 1A at 125VAC, 3A at 40VDC.
Line Input Level: -40dBm to +10dBm adjustable.
Line Output Level: -20dBm to +10dBm into a 600 Ohm line, adjustable (high-level guard
tone only).
Distortion: 3% maximum at full output.
Hum and Noise: 50dB below operating levels.
Speaker (one): 3in 8 Ohm, heavy-duty.
Amplifier Power: 2W maximum at 3% THD into an 8 Ohm load or equivalent.
Optional Handset Earpiece Level: Adjustable level independent of speaker volume controls.
Audio Frequency Response: ±1.5dB, 300 to 3000Hz, except at the transmit tone notch frequency.
Tone Frequencies: PTT/Guard 2175Hz or 2300Hz. The monitor and frequency function
tones are programmable from 400Hz to 3000Hz at 50Hz increments.
Accuracy 1Hz.
Operating Temperature Range:
0
°C to +70°C (32°F to +158°F).
Power Requirements: 0.117 VAC, 60Hz, 25W, or 12.0 VDC at 1A maximum.
Microphone Connection: Handset and headset 4-wire; desk uses 6-wire.