Specifications

CONTENTS
CONFIGURATION NOTES
1. A maximum of 40 stations can be installed on the system.
2. Only one 2 SLI card can be installed in the system.
3. Only one SMISC card can be installed in the system.
4. Up to six expansion cards can be installed in the system.
5. Only one CADENCE card can be installed in the system.
6. Installing CADENCE reduces the maximum number of stations to 32.
7. Only eight KDbs can be installed in the system and they must be installed on keysets
connected to the (8) eight 2B+D ports on the KSU motherboard.
1.2 TECHNOLOGY
System switching is accomplished by means of a custom IC “engine” that provides 128
switchable digital channels. Each of the 128 digital channels is automatically assigned to
carry voice or data as required by system operation in a PCM format. In addition to the 128
channels mentioned above , the system also utilizes Digital Signal Processors or DSPs.
Each DSP may be configured by the switching control program as a DTMF receiver or a
C.O. tone detector on a per-call basis. The engine chip contains four DSPs and four more
are added when an SMISC card is installed. This means that the system contains a total
of eight DSP channels when fully expanded. The DSP channels are fully shared through-
out the system as a common resource.
MEMORY
The system operates using stored program control. This program is stored in four EPROM
chips (2048 Kbytes of memory). All specific customer data is stored in non-volatile ran-
1.4
SEITITNAUQECIVEDMUMIXAM
EPYTECIVEDECNEDACTUOHTIWECNEDACHTIW
)SECIVEDILD&S'TLS(SNOITATS0423
)SMIPD/SMOA/STESYEK(SECIVEDILD0423
SENOHPELETENILELGNIS2342
SENILTRATSPOOL8181
STIUCRICIRB4242
SLENNAHCIRB8484
SKNURTM&E2121
STROPECNEDAC08
TABLE 1–1