NEC Xen Master System Hardware Manual page 142

NEC Australia Pty Ltd
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A maximum of 2 BRT(4)-U13 ETUs can be installed in the
Xen Axis system, in slots S3 and S4.
4.1.3 Switch Settings
SW1 is the reset switch.
4.1.4 Jumpers
CN101 and CN102
✆
Set the 100
CN101 and CN102 shorted together from the factory
turns on the 100
CN201 and CN202
✆
Set the 100
CN201 and CN202 shorted together from the factory
turns on the 100
CN301 and CN302
✆
Set the 100
CN301 and CN302 shorted together from the factory
turns on the 100
CN401 and CN402
✆
Set the 100
CN401 and CN402 shorted together from the factory
turns on the 100
4.1.5 LED Indications
LED1 indications are listed below.
✆
Blinking Red
✆
Steady Red
✆
Off
LED2 L1 Status for BRI Interface 1
✆
Steady Red when Layer 1 is working
LED3 L1 Status for BRI Interface 2
✆
Steady Red when Layer 1 is working
LED4 L1 Status for BRI Interface 3
✆
Steady Red when Layer 1 is working
LED5 L1 Status for BRI Interface 4
✆
Steady Red when Layer 1 is working
LED6
✆
Steady Red when B1 or B2 are busy in Interface 1.
LED7
✆
Steady Red when B1 or B2 are busy in Interface 2.
Xen Master & Xen Axis
termination to On or Off for Interface 1.
Ω
terminal.
Ω
termination to On or Off for Interface 2.
Ω
terminal.
Ω
termination to On or Off for Interface 3.
Ω
terminal.
Ω
termination to On or Off for Interface 4.
Ω
terminal.
Ω
Normal Operation
Operation Stopped (power still on)
No Power
Installing Electronic Telephone Units