May 2001
System Hardware Manual 5 - 153
A6-324000-642-01 – Release 4.0
May 2001
5.2.3 LED Indications
Live LED indications are listed below.
✆ Blinking Red Normal Operation
✆ Steady Red Operation Stopped (power still on)
✆ Off No Power
LED 1 indications are listed below.
✆ On Some circuit(s) are receiving DTMF
signalling
✆ Off All PBR(s) are idle
5.2.4 Connectors
The following connector is located on the PBR( )-U13
ETU.
✆ CN1 Connects to the backboard
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).
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