Typical Line Configurations; Dk40I Line And Station Capacity; Network Requirements - Toshiba Strata DK14 General Description Manual

Typical Line Configurations

This section shows the maximum basic and CO configurations that are possible with the DK40i.
There is a variety of configuration combinations of digital and standard telephones with CO lines,
including loop start, ground start, Tie, and DID lines. Any loop or ground start CO line can be
equipped with Caller ID.

DK40i Line and Station Capacity

The following table shows maximum capacity for a DK40i system (see
DK Installation and Maintenance Manual, Chapter 2 – DK40i Configuration for details.
Table 7 Maximum CO Lines/Ports and BRI Line and Station Circuits
Attaining maximum system capacities depends on power consumption of a particular
configuration. Power factor calculations in accordance with the Strata DK I&M Manual will
determine if the maximum capacities in these tables can be reached.
Stations can be a combination of ISDN TE-1 and TA S-type devices and digital, electronic or
standard telephones. CO line combinations include ground or loop start, DID, Tie or ISDN BRI.
Each BRI line circuit uses up two CO lines at system capacity. All other line circuits use up one
CO line of system capacity.
Each BRI station circuit uses up to two station ports of system capacity. All other station circuits
use up one station port of system capacity.
Table 8 Typical Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
BRI Station BRI Station
Circuits B channels
10
8
6
4
4
2
0

Network Requirements

See Table 37 on Page 110
Strata DK General Description
Hardware
CO Lines
Station Ports
BRI Line Circuits
BRI Station Circuits
Other Station
Circuits
20 8
16 12
12 16
8 20
8 20
4 24
0 28
for network requirements of station and line PCBs and interface cards.
5/99
Table
Maximum
Allowed
12
28
6
10
BRI Line BRI Line
Circuits B channels
6 12
4 8
4 8
6 12
4 8
2 4
0 0
Strata DK40i
Typical Line Configurations
7). See the Strata
Other Line
Circuits
0
4
4
0
4
8
12
15