NEC ElectraElite 48, System Hardware Manual

Page: 185 / 435

Issue 6 Electra Elite
5 - 48 Installing Electronic Telephone Units
4.10.2 Installation
When a PRT(1)-U( ) ETU is installed, a CLKG-U( ) Unit
must be installed on the MBD-U10 Unit. One PRT(1)-U( )
ETU can be installed only in slot S4 (
S7000 or lower
).
For
S8000 or higher
four PRT(1)-U( ) ETUs can be
installed in slots S3~S6 limited by 16 trunks.
4.10.3 Switch Settings
Switch SW1 is a 4-position DIP switch used to assign the
application.
Table 5-21 PRT(1)-U( ) ETU SW1 Settings
shows application selection.
SW1-4 is not used and
must be OFF
.
Switch SW2 is an 8-position rotary switch that can be set
even during operation. A small flat screwdriver can be
used to set positions as follows:
Position 0 Alarm Indications
Position 1 B Channels 01~12 Status Indication
using LEDs 1~12
Position 2 B Channels 13~23 Status Indication
using LEDs 1~12
Positions 3 CO Trunks 01~12 assigned to PRT ETU
Status Indication using LEDs 1~12
Positions 4 CO Trunks 13~23 assigned to PRT ETU
Status Indication using LEDs 1~12
Positions 5 & 6 Not Used
Position 7 Inspection Mode in production line
Table 5-21 PRT(1)-U( ) ETU SW1 Settings
SW1–1 SW1–2 SW1–3 SW1–4 Application
ON ON ON OFF NI-2
OFF ON ON OFF 4ESS (AT&T Custom)
OFF OFF ON OFF AT&T 5ESS (Lucent Custom)
ON ON OFF OFF DMS-100 (Custom)
*
ON OFF ON OFF DMS-100 (National ISDN)
**
* Nortel Specification NIS-A211-1
** Nortel Specification NIS-A233-1