NEC Xen Master System Hardware Manual page 166

NEC Australia Pty Ltd
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✆
Status
This bi-color (red and green) LED shows status of all
Gateway trunks. When an error is detected, the
location is indicated by the following table.
Trunk Status
Power On
Start DSP download
DSP download OK
Successful Application
Start
4.13.4 IPT(4)-U13 to IPT(8)-U13 ETU Conversion
The IPE(4)-U13 Unit is attached to the IPT(4)-U13 ETU to
convert it to the IPT(8)-U13 ETU. This unit comes with two
attached standoffs with an extra screw in the bottom.
1. Remove the screw from the bottom of each standoff.
2. Line up the IPE(4)-U13 Unit standoffs with Holes 1
and 2 and connector J1 with IPT(4)-U13 ETU
connector J5, and press down until the IPE(4)-U13
Unit is firmly attached to the IPT(4)-U13 ETU.
3. Install the two previously removed screws through
holes 1 and 2 to Connect the standoffs to the
IPT(4)-U10 ETU.
4.13.5 Connectors
The IPT(4)/(8)-U13 ETU has two connectors
✆
CN1
✆
RJ-45
4.13.6 Switch S1
Switch S1 must be in power down (PD) for ETU
installation, and placed in PU to activate the ETU. After the
ETU is activated, S1 is placed in PD to power down the
ETU for removal.
Xen Master & Xen Axis
LED Condition
Off BIOS, Hardware
Red DSP Driver
Red and Green DSP Download
Green Application Load
Connects to the backboard
Connects to the Ethernet
Installing Electronic Telephone Units
Error Location