T1/Pri Card - Tadiran Telecom Emerald ICE Installation Manual

2.12
Figure 2-12

T1/PRI Card)

2-14
Emerald ICE Installation & Hardware Reference Manual
T1/PRI Card
The T1 PRI card is installed in the designated slot on the Base Board in the Emerald
ICE KSU4.
The card provides 23 channels.
The T1/PRI card is connected with a network via RJ‐45 or DB‐15 cables.
An on‐board crystal and can be set as master or slave to synchronize with the
PSTN, depending upon the networking requirement.
A 15‐pin‐backplane interface covering the following portions:
• Power feeding: 5 VDCPCM highway: The system will provide an 8KHz frame
signal for the T1/PRI card's synchronization.
• Control Data Interface: It is compatible with SPI (Serial Peripheral Interface) bus
timing.
For an outgoing call, the trunk group access code is dialed, (e.g. "9") or individual
trunk line lines (buttons) can be selected to seize an idle trunk. If a trunk group
consists of an analog trunk and T1 trunk lines, access to the trunk group will be
assigned with an idle trunk line in accordance with the programmed hunting
methods such as SEQF (sequential from the first), SEQL (sequential from the last)
or Random. The hunting sequence is based on the physical port number assigned
to the individual trunk, either analog or digital.
An incoming call is treated as a normal analog trunk call and will ring the
programmed answering extensions for notification. Calling party numbers will be
displayed when received.