ADC ClearGain Dual Inline Tower Mounted Amplifier System User Manual page 15

DC
INPUT
NO COM
(NO RMALLY
(CO MMO N)
OPEN)
2.3.3 Setting the DIP Switch on the PDU
PDU has one set of dip switches to enable or disable the MHU ports. To disconnect unused MHU
output (see Figure 8). For the MHU outputs that are used, the DIP switch must be in the "down"
position or "ON". Unused outputs must be disconnected by setting DIP switch in the "up" position.
(Switch 1 and 3 Set to "ON" to Indicate Use of MHU Ports 1 and 3)
POWER DISTRIBUTION UNIT
PDU
ALALRM
LOG IC
NC G ND RS 485A RS 485B
(NO RMALLY
CLOSED)
Figure 7. PDU Alarm Logic and RS-485 Connections
Figure 8. Example of DIP Switch Setting on the PDU
ADCP-75-214 • Issue 2 • September 2006
OUTPUT
21307-B
© 2006, ADC Telecommunications, Inc.
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