1291
Maximum System Capacities for Trunk Interface Blades (Continued)
Maximum Capacities
Basic Port Expanded Port
Package
Package
This 4-port CO/PBX Line Interface has
built-in fuses (posistors), supports four
outside (CO/PBX) lines, and provides
circuitry for ring detection, holding and
dialing. The outside lines must be Loop
Start DTMF trunks. This blade is installed
in slots 2~6 of a chassis with CPU and
slots 1~6 of expansion chassis. The
maximum number depends on other trunk
blades installed.
This blade shares the total number of CO/
PBX lines in the system.
This 4-port CO/PBX Line Interface has
built-in fuses (posistors), supports eight
outside (CO/PBX) lines, and provides
circuitry for ring detection, holding and
dialing. The outside lines must be Ground
Start DTMF trunks. This daughter board is
installed on a GCD-4COTA or GCD-LTA
The maximum number depends on other
trunk blades installed.
This daughter board shares the total
number of CO/PBX lines in the system.
This T1/FT1 Trunk Interface or
ISDN-Primary Rate digital trunk
terminates Fractional T1 trunks (Up to 24
DS-0 channels). This blade supports ANI/
DNIS trunks, and CSU less function on
T1. A combination of ground start and loop
start signaling can be used on the
GCD-PRTA. Dial pulse dialing, DTMF, Tie
Line (E&M), and DID are supported. This
blade has 24 built-in DTMF detectors.
Trunks are assigned in groups of four.
When channels are assigned to ANI,
Feature Group D is supported. Feature
Group D incoming MF/outgoing DTMF
signaling with point-to-point E&M Tie Lines
are also supported.
This blade is installed in slots 2~6 of a
chassis with CPU and slots 1~6 of
expansion chassis. The maximum number
depends on other trunk blades installed.
This blade shares the total number of CO/
PBX lines in the system.
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