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E1CAS1BitEAmpMEmulationTypes Telesis systems support single-bit CAS (Channel Associated Signaling) E&M emulation with:
CAS signaling E1 interfaces in Telesis systems Telesis systems have CAS signaling E1 interfaces to connect to PSTN and private network Options The physical interface for CAS single-bit E&M emulation is an E1. 120 ohm balanced terminations are supported on any E1. The line code is HDB3 or AMI programmable. CRC4 may be enabled or disabled. Each E1 channel can be programmed as incoming, outgoing, bothway trunk, or unavailable. This also yields fractional E1 connections. For single-bit pulsed or continuous line signaling, the idle states of the A,B,C, and D bits can be set as desired. The signaling bit is also programmable as any one of A,B,C, or D. The transmit and receive gains in any E1 voice channel may be increased or decreased. Many signaling periods and timers for signal generation and detection are field programmable, such as:
Both unilateral and bilateral call clearing are applicable. Route, Routeset Configuration, Routing In a Telesis system, each E1 channel may have its own route number. It is possible to define up to 128 distinct routes. A given route to a particular destination and its accompanying routes are grouped in a routeset. Each route in a routeset has a priority order. Routing to the next priority alternate route is possible in the event that a route becomes unavailable. The Telesis system realizes routing according to the dialed digits. |