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| Is there a limitation regarding the maximum number of communications devices that can be interconnected by APCOS? |
| Due to the use of advanced network technologies such as ATM over SDH / SONET (OC-12) and High-Speed Ethernet (up to 10Gbit/s), APCOS provides more than enough bandwidth for even the largest naval vessels. |
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| Does APCOS make use of relay matrices or patchpanels to interconnect crypto-modem and radio devices? |
| No, APCOS transmits ALL signals digitized. This allows a flexible and unconstrained allocation of the mentioned devices to communications lines. |
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| Why does APCOS use two kinds of network technologies (Ethernet and ATM / SDH)? |
| Traditionally, communications systems had to deal with voice communication and low bandwidth serial data up to 9600 bits/s. Today, we see an increased demand for high speed packet-oriented data transfer, which is increased by the use of modern COTS network equipment. However, in order to meet the very stringent timing requirements especially of the audio signals of encryption devices, you still need deterministic transport channels. The combination of Ethernet and SDH / ATM provides reliability and performance for both kinds of communications classes. |
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