Vdh2(8)-U13 Etu - NEC Xen Master System Hardware Manual

System Hardware Manual
5.2.3 LED Indications
Live LED indications are listed below.
✆
✆
✆
LED 1 indications are listed below.
✆
✆
5.2.4 Connectors
The following connector is located on the PBR( )-U13
ETU.
✆
5.3

VDH2(8)-U13 ETU

5.3.1 Description
The VDH2(8)-U13 ETU integrates both LAN and station
cabling. This is a standard ESI ETU with additional
circuitry for the LAN integration function.
Key Telephones and Attendant Consoles can be
connected to the VDH2(8)-U13 ETU via a VDD-UA Unit.,
CTU(C)-UA Unit or PCT(C)-U13 Unit.
Each VDH2(8)-U13 ETU has a built-in HUB facility that
has eight ports (IEEE 802.3 10Base-2).
Blinking Red Normal Operation
Steady Red Operation Stopped (power still on)
Off No Power
On Some circuit(s) are receiving DTMF
signalling
Off All PBR(s) are idle
CN1 Connects to the backboard
May 2001
5 - 153