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RTS Telex

Zeus III

Compact Matrix Intercom: 32-Port

Redundant Power Supplies

The unit comes with two (2) completely independent power supplies powered from separate AC feeds.

USB Port

The USB port is used for system configuration using AZedit Intercom software.

Trunk Capable

Using either the dedicated DB-9 trunk connector with standard RS485 protocol, or newly release Ethernet trunking the Zeus III is able to communicate with a RTS trunk master system.

Additional Channels/Ports

The Zeus III is a 32-channel intercom matrix. Each channel can be used to connect to a keypanel or 4W audio (audio IN/OUT).

Dual-Channel Party Line Interface

Zeus III includes an interface for additional two (2) channels of party line. From the front panel it can be configured for use with RTS TW, Audiocom, or Clear-Com party line systems. No additional interfaces are necessary.

Remote Configuration

With the addition of Ethernet to the unit, you can now remotely configure your Zeus III.

Dynamic Keypanel Addressing

Zeus III now automatically addresses keypanels when they are connected to the frame. This eliminates the need for setting keypanel addresses and maintaining port allocations.


Two relay connections are included, which are available on the back panel of the unit.
AES Audio No
Audio Bits 24
Bus Expansion No
Color Dark Grey
Conversion 44.1 kHz 24-bits
Crosstalk < -80 dBu
Depth 15" (381 mm)
Frequency Response within ±1dB from 50 Hz - 20 kHz at 20 dBu
Height 1.75" (44.5 mm)
Input Impedance 22KΩ KΩ
Integrated Party-Line Interface Yes
Intuitive User Interface Yes
Keypanel Data Ports RS485 with dedicated transceivers for every port
Link Method N/A
Matrix PC Connection Ethernet, Serial, USB
Maximum Level 20 dBu
Memory Non-volatile Flash
Nominal Input/Output 5 kΩ
Nominal Level 8 dBu
Non-Destructive Download Yes
Output Impedance 600Ω
PC Port Yes
Port Capacity: Single Frame 32 keypanel ports, 2 party line ports with call signaling
Power Requirements 90-264VAC 50/60Hz
Rack Units 1
Redundant Controllers No
Redundant Power Supplies Yes
Relays 2
Remote Configuration Yes
Signal Type Balanced
Signal-to-Noise Ratio > 85 dB at 20 dBu (A-weighted)
Total Harmonic Distortion < 1 % at channel output with nominal input
Total Harmonic Distortion+Noise < 0.01 % at 20 dBu, 1 kHz (unweighted)
Trunking Yes
USB Port Yes
VOX on Input Yes
Weight 7 lbs (3.18 kg)
Width 16.37" (415.8 mm)



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RTS is part of the Bosch Communications Systems family of brands, offering the world's most complete portfolio of professional audio and communications solutions.

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