Meridian America 61 Manual De Usuario
P R A C T I C E 553 -2201-193
Typical
Cabling and Cross-Connections
Converts the Meridian SL-1 bit interleaved data format to
format and vice versa.
format and vice versa.
Converts Meridian SL-1 SSD (signaling) messages to TCM format
and vice versa.
and vice versa.
Synchronizes the digital telephones and their data options
Meridian SL-1.
Meridian SL-1.
Provides buffering of messages to compensate for different
signaling rates
signaling rates
1.10
The ISDLC consists of the functional blocks shown in Fig. 1-2.
Each block incorporates the following main functions:
TCM Loop interface.
Couples 8 identical TCM loops from the Digital Line Interface
functional block of the ISDLC to the Digital Set
Interface
functional block located in
digitial
telephone in both the transmit and receive directions.
l
Provides i-30 battery feed to each digital telephone through a
voltage regulator, configured as a 60
voltage regulator, configured as a 60
constant current
source.
D i g i t a l L i n e I n t e r f a c e
The DLIC provides the
communication link between 8 digital telephones (including their
associated Data Options) and the Meridian SL-1 peripheral bus.
The DLIC performs the following functions:
associated Data Options) and the Meridian SL-1 peripheral bus.
The DLIC performs the following functions:
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