Starplus Triad Xts Installation Digital Key Telephone System Instructions Guide

							Network InstallationC-7
Appendix C - Networking Systems
Extension Numbering
Valid extension range numbering is between 1000 and 8999. Numbering conflicts must be
avoided. For example, if stations 100, 200, and 300 exist, the numbers 1000, 2000, and 3000
are conflicts. This is because the system detects the first three digits as validly assigned.
Therefore, the system is not prepared to accept a fourth digit.
Feature Code Numbering
Feature codes must be unique numbers that pose no conflicts. Therefore, the feature code
numbering plan cannot conflict with station numbering. For example, a station numbered
4400 is a direct conflict to the default voice mail group“440”.
Leading Digit
Enabling the leading digit feature quickly changes station and feature codes by placing a
digit in front of the current 3-digit codes. For example, several Nodes can have stations
100-351. To make station numbers unique, the leading digit can be programmed as 1, 2, 3,
etc. to result in station numbers of 1000-1351, 2000-2351, 3000-3351, etc. Feature codes will
then also have a leading digit assigned. For example, feature code 700 will result in feature
codes of 1700, 2700, 3700, etc.
Network Installation
Network Distance
If KSUs are greater than 50 feet apart, connect them through TELCO using a point to point T-1
(Refer toTa b l e 1and thenote onpage C-4). If each KSU is less than 50 feet apart and there is no
TELCO connection, then connect them using a straight-through connection (refer toFigure C-
2andTa b l e C - 3). Connections between Nodes and either a Hub or to TELCO always use the
straight-through connection.
The“#”key can not be a leading digit when networking systems together. Pound (#)
is a reserved digit, for the termination of specialized features such as LCR.
Table 1: TELCO to Hub Interconnect Diagram - Pin Connections
TELCO Hub (NT)
RJ45 DB15 Female Pin #
1-->    
						

							C-8Network Installation
Appendix C - Networking Systems
Figure C-2: PRI Connector
ISDN and T-1 Clocking
When using PRIB or T-1 cards in one KSU, specific settings are important for proper clocking.
Popping, crackling, dropped calls, and one-way transmission are usually attributed to the
clocking not being synchronized correctly.
It is preferable to use a TELCO PRI to establish clocking for the Network (Figure C-4). If no
TELCO PRI or T-1 is available, then clocking will be controlled by the Hub system (all PRI clock
switches enabled) for the entire Network (Figure C-5). The following examples are provided
to illustrate proper clocking settings under given scenarios.
Table 2: TELCO to Node Interconnect Diagram - Pin Connections
TELCO Node (TE)
RJ45 DB15 Female Pin #
1-->          
						

							Network InstallationC-9
Appendix C - Networking Systems
The following figures use a symbol to represent the clock switch position on a PRI or T1
card. When the top of the symbol is black, it represents the switch in the Up or Enable
position. When the bottom of the symbol is black, it represents the switch in the Down or
Disable position.
Figure C-3: Point-to-Point PRIs
Figure C-4: TELCO PRI Connection to the Hub
External Clock Setting:Hub
Node
Up = Enable Clock
Down = Disable Clock
(Clock Source)
Hub
Node
Node TELCO
PRI
(Clock Source)
External Clock Setting:
Up = Enable Clock
Down = Disable ClockNote: The horizontal arrow
represents Out-to-In Cabling. 
						

							C-10Network Installation
Appendix C - Networking Systems
Figure C-5: No TELCO Connection
Figure C-6: TELCO PRI Connection To a Node
Hub
Node
Node
(Clock Source)
External Clock Setting:
Up = Enable Clock
Down = Disable Clock
Hub
Node
Node
TELCO
PRI
(Clock Source)
External Clock Setting:
Up = Enable Clock
Down = Disable ClockNote: The horizontal arrow
represents Out-to-In Cabling. 
						

							Network InstallationC-11
Appendix C - Networking Systems
Figure C-7: All Systems have TELCO PRI Connection
Figure C-8: All Systems have TELCO T1 Connection
Hub
Node
Node
TELCO
PRI
TELCO
PRI TELCO
PRI
(Clock Source)
External Clock Setting:
Up = Enable Clock
Down = Disable ClockNote: The horizontal arrow
represents Out-to-In Cabling.
Hub
Node
Node
TELCO
T1
TELCO
T1 TELCO
T1
(Clock Source)
External Clock Setting:
Up = Enable Clock
Down = Disable ClockNote: The horizontal arrow
represents Out-to-In Cabling. 
						

							C-12Network Installation
Appendix C - Networking Systems
Figure C-9: Two PRIs from TELCO to Nodes
Figure C-10: Two T1s in Hub Connected to PRI in Nodes
Hub
Node
Node
TELCO
PRI
(Clock Source)
External Clock Setting:
Up = Enable Clock
Down = Disable ClockNote: The horizontal arrow
represents Out-to-In Cabling.
Hub
Node
Node
TELCO
T1
(Clock Source)
External Clock Setting:
Up = Enable Clock
Down = Disable ClockNote: The horizontal arrow
represents Out-to-In Cabling. 
						

							ProgrammingC-13
Appendix C - Networking Systems
Programming
Programming must be done with a 24-button display telephone or with WinDBA. It is
recommended that WinDBA be used for network programming. The following sections
describe programming steps that pertain to networking. Each section assumes that you have
already entered system programming. The following sections provide a detailed description
of programming steps necessary for networking. A Quick Start procedure is provided at the
end of this document as an aid to understanding the flow of programming.
Node/Hub Identification Programming
Description
In networking, there must be a central Hub. All communication within the network must be
linked via the Hub. The Hub should be identified as system 1. Each Node should be identified
with its own unique number between 2 and 16. Networking requires 4-digit dialing.
Complete the following programming steps to specify numbers that identify
Hub/Nodes and to specify the leading digit to be used for dialing.
Programming Steps
1. PressFLASHand dial[09]. The following message displays:
2. Press Button #8. The following message displays:
3. Dial a valid number (01-16) to identify the system by number.
4. PressHOLDtosavetheentry.
5. Press Button #9. The following message displays:
6. Dial a valid number (0-8) to identify the desired leading digit.
SYSTEM PARAMETERS
ENTERBUTTONNUMBER
SYSTEM NODE 1-16
01
The Hub should be identified as system 1. Each Node should be identified with
its own unique number between 2 and 16.
LEADING DIGIT 0-8
0 
						

							C-14Programming
Appendix C - Networking Systems
7. PressHOLDtosavetheentry.
Networking Tables Programming
Description
The Networking Table is used to route calls between systems. It identifies the table number
(01-16), the CO Group (00-23), the range of station numbers (from xxxx to xxxx), which card
sends DSS/BLF information to an external location (programming for external BLF is only
done on the Hub system), and whether the Status Check is enabled or disabled.
The Table Number establishes the sequence that the system uses to search for a match to the
number being called. The system searches based on table number 01 parameters. If no
match is found, then the system searches based on table number 02 parameters. This process
continues until a match is found and the call is placed, or no match is found and the caller
receives an error tone.
An automatic Status Check is designed to cope with unique network configurations that
have a system’s extension range that overlaps another system’s extension range. Status
Check screens a call to determine if the station number is assigned
within the network. If the
extension number is unassigned, the call is not forwarded to another system in the network
and the caller receives an error tone.
EXAMPLE OF THE ISSUE -- System A has station numbers 6005, 6006, 6007, 6024 and
6048; System B has station numbers 6008, 6009, 6010, 6025, and 6049. Station number
6022 is not assigned. In this example, both Systems have overlapping station ranges. A
problem can occur when an incoming call for station number 6022 enters System A.
System A checks to determine if this is an assigned number within System A. Since it is
not an assigned number within System A, the call is forwarded to System B. System B
completes the same process, then forwards the call back to System A, etc.
Networking Tables For Nodes (refer toFigure C-11andFigure C-12)
Table Number 01 of a Node’s networking tables should include:

						

							ProgrammingC-15
Appendix C - Networking Systems
The system will screen and process calls in the following sequence:
If the call matches an extension specified in Flash 52 programming, the call will be
connected within the same system.
-or-
If the call matches an extension associated with Table Number 02, the call will be routed
to the appropriate remote device.
-or-
If the call matches an extension associated with Table Number 03, the caller will receive
an error tone.
Networking Tables For the Hub (refer toFigure C-11andFigure C-12)
Table Number 01 of a Hub’s networking tables should include:

						

							C-16Programming
Appendix C - Networking Systems
Figure C-11: Two-Node Networking Table Example
LEGEND:
Table Number= the identification number assigned to each array within the system.
CO Group= the line group used to access each system. Co Group 00 = internal calls only.
Extn Range= the extension numbering range for the array.
Ext BLF Slot= identifies PRIB slot locations in the Hub that are associated with each Node within the
network, other than the Node being defined by the Table Number row. This allows DSS/BLF updates to be
sent to the correct systems within the network. Node systems do not identify Ext BLF Slot locations because
the Hub system controls passing of information.SYSTEM 2 SYSTEM 1 (HUB) SYSTEM 3
Ext 1000–1999 Ext 2000–2999 Ext 3000–3999
PRIB Slot 7 PRIB Slot 2
CO Group 02 CO Group 02
PRIB Slot 3 PRIB Slot 4
CO Group 03 CO Group 02
Actions notify System 1
(e.g., on/off hook)Actions notify both
System 2 and System 3Actions notify System 1
Table Number
CO Group
Extn Range
Ext BLF Slot
Table Number
CO Group
Extn Range
Ext BLF Slot
Table Number
CO Group
Extn Range
Ext BLF Slot
01 00 1000 -
1999--- 01 00 2000 -
2999-- 01 00 3000 -
3999---
02 02 1000 -
3999--- 02 02 1000 -
19993 02 02 1000 -
3999---
03 00 1000 -
8999--- 03 03 3000 -
39992 03 00 1000 -
8999---
….to
….--- 04 00 1000 -
8999---….to
….
….to
….….to
….….to
….
16….to
….--- 16….to
….16….to
….---