Tadiran Telecom Emerald ICE Installation & Maintenance Manual page 21

Figure 1-1 ICE Digital
Hybrid Key Telephone
System
1-2
Emerald ICE Installation, Programming & Maintenance Manual
An illustration of the ICE cabinet and 2 Key Telephone Sets are shown below in
Figure 1.
Emerald ICE KSU
The Emerald ICE incorporates state‐of‐the‐art digital technology for voice switching
and call processing utilizing Pulse Code Modulation and Time Division
Multiplexing (PCM/TDM).
The Emerald ICE is a non‐blocking switch featuring no degradation of voice
signals. The system utilizes a 16‐bit, 20 MHz main microprocessor and peripheral
device (extensions and CO lines) processors in a distributed processing
configuration. Memory consists of 640K bytes of ROM and 384K bytes of RAM.
Emerald ICE Deluxe Model Telephone
Emerald ICE Standard Model Telephone