NEC Xen Master System Hardware Manual page 163

System Hardware Manual
4.12.2 Installation
A maximum of 23 OPX(2)-U13 ETUs can be installed in
the Xen Master system (maximum of 46 ports) in slots
S1~S8 in the first, second or third KSU.
A maximum of 5 OPX(2)-U13 ETUs can be installed in the
Xen Axis system (maximum of 10 ports) in slots S3~S7.
The analogue extension can be located up to 6 kms away
using 24AWG single-pair wiring (maximum 1800
resistance, including the internal resistance of the
analogue device).
4.12.3 LED Indications
Live LED indications are listed below.
✆
Blinking Red
✆
Steady Red
✆
Off
LED1 indications are listed below.
✆
Steady Red
✆
Off
4.12.4 Connectors
The OPX(2)-U13 ETU has one connector.
✆
CN1
Normal Operation
Operation Stopped (power still on)
No Power
Some port(s) busy
All ports idle
Connects to the backboard
May 2001
loop
Ω
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