NEC Univerge SV9100, Руководство пользователя

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Issue 2.0
1-2 General Information <US Only>
1.1 Common Channel Handler (GCD-CCTA)
The Common Channel Handler (GCD-CCTA) blade provides a common channel
signal to a UNIVERGE SV9100 network. It is responsible for signaling between
the Key Telephone System (KTS) and the UNIVERGE SV9100 network under
control of the GCD-CP10.
1.2 Phase Locked Oscillator (PLO)
The Phase Locked Oscillator (PLO) provides synchronization between the TDSW
and other offices and is built into the GCD-CP10. The clock generates a
synchronized clock signal according to the source clock signals supplied from the
source office in the network, and supplies the generated clock signal to the
TDSW. The clock is supplied with clock signals extracted from the G
CD-CCTA .
1.3 Common Channel Interoffice Signaling (K-CCIS)
The PBX can provide connection to the UNIVERGE SV9100 using a digital
network. The network requires the Common Channel Handler (G
CD-CCTA ) to
control the common signaling between offices.
Digital Network
When UNIVERGE SV9100 is provided through a digital network, the CCH and T-1
functionality is combined on the GCD-CCTA to provide a fixed path in the TDSW
and to transmit and receive common signaling data to/from the distant office
through a predetermined channel. Voice signals are transmitted and received per
line through other channels.
Figure 1-2 Clock Supply Route