Order Of Installing Extension Pcbs; Order Of Installing Trunk Pcbs; 2.1.3.1 Installing Coiu, 4Tliu, Diopu, Or Bri Pcb's; 2.1.3.2 Installing T1/Pri Pcbs - NEC UX5000 Hardware Manual

Chapter 2 - PCB Installation and Startup
2.1.2

Order of Installing Extension PCBs

The order that the station PCBs (ESIU and SLIU) are physically inserted determines
the numbering plan.
For example, with a digital station card (16ESIU) in slot #1 (ext. 301-316), when 3 additional digital station
cards are installed in the following order, the numbering plan below applies:
After the initial powering up of the system, subsequent powering up or resets will not change the slot
identification. System programming (Program 90-05) must be performed to change the slot identification.
2.1.3

Order of Installing Trunk PCBs

2.1.3.1 Installing COIU, 4TLIU, DIOPU, or BRI PCB's:

The order in which trunk PCBs are physically inserted determines the numbering plan.
For example, if four PCBs are installed in the following order, the numbering plan below would
apply:

2.1.3.2 Installing T1/PRI PCBs

The T1/PRI Interface PCB uses the first block of 24 consecutive trunks.
For example, if you have an 4COIU PCB with a 4COIDB installed for trunks 1-8, the T1/PRI PCB will
automatically use trunks 9-32. If you have 4COIU PCB with a 4COIDB installed for trunks 1-8 and
17-24, the T1/PRI PCB will use trunks 25-48. The T1/PRI PCB cannot use trunks 9-16 (even if
available) since they are not part of a consecutive block of 24 trunks.
2 - 2
Order of PCB Slot #
Install
1
2
3
4
Order of
PCB Slot #
Install
1 5
2 6
3 8
4 7
Ext Numbers
2 301-316
3 317-332
5 333-348
4 349-364
PCB Line Circuits
4COIU with 1-8
4COIDB
4COIU 9-12
4TLIU 13-16
4TLIU 17-20
Chapter 2