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4 POWER APPLICATION AND SYSTEM CHECKOUT
Ensure that a 0.5 Amp fuse is in place in the fuse panel for each DSX-4U chassis in the bay.
Fuses from left to right (as viewed from the front) correlate to chassis from bottom to top, with
one fuse for each chassis. Apply –48 Vdc office battery at the office distribution panel.
Cross-connect wiring can be checked as necessary by pulling the tracer lamp switch button on
any DSX-4U circuit module. Pulling of this button should cause the corresponding tracer lamp
and the tracer lamp at the other end of the cross connect to flash for approximately 30 seconds
and then remain lit until the button is pushed back in.
DSX
TRACER LAMP
CIRCUIT MODULE
PIN JACKS
(REAR VIEW)
XO
XI
O
I
Figure 2-9. DSX-4U-24 Cross Connection
ADCP-80-353 • Issue 2 • August 2002 • Section 2: Installation
TL
OUT
CROSS
CONNECTS
IN
OUT
IN
CROSS-CONNECT JUMPER
WITH MESSENGER WIRE
TRACER LAMP
PIN JACKS
TL
XO
OUT
XI
IN
O
OUT
I
IN
8638-B
Page 2-11
© 2002, ADC Telecommunications, Inc.
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