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LBI-39128 INSTALLATION
14
Procedure
The following steps involve equipment in the Site
Controller cabinet, except as noted:
1. Mark the cables and wires going to the old PMU as
follows:
• Mark “Antennas 1-4” on the cable going to the DB-
15 connector on the back of old PMU marked
“Antennas 1-4”.
• Mark “Transmitters 1-9” on the cable going to the
DB-37 connector on the back of the old PMU
marked “Transmitters 1-9”.
• Mark “Transmitters 10-18” on the cable going to
the DB-37 connector on the back of the old PMU
marked “Transmitters 10-18”.
• Mark “Transmitters 19-20” on the cable going to
the DB-25 connector on the back of the old PMU
marked “Transmitters 19-20”.
• Mark “RS-232” on the cable going to the DB-25
connector on the back of the old PMU marked
“RS-232”.
• Mark “+” on the wire going to the screw terminal
marked “+”.
• Mark “–” on the wire going to the screw terminal
marked “–”.
2. Turn off the main 12V power supply for the cabinet.
3. Disconnect the cables and wires from the old PMU.
4. Replace the old PMU with the new PMU. There will be
a half rack unit space (7/8 inch) both above and below
the PMU.
5. Connect the 188D6451P1 adapter cable as follows:
• Connect the two DB-37 connectors on the adapter
cable marked “P2” and “P3” to the existing cables
(disconnected from the old PMU) marked
“Transmitters 1-9” and “Transmitters 10-18”
respectively.
• Connect the single DB-25 connector on one end of
the adapter cable marked “P4” to the existing cable
(disconnected from the old PMU) marked
“Transmitters 19-20”.
• Connect the five DB-25 connectors on the other
end of the adapter cable marked “P5”, “P6”, “P7”,
“P8”, and “P9” to Port 1 through Port 5
respectively on the back of the new PMU.
6. Connect the 188D6496P1 adapter cable as follows:
• Connect the DB-15 connector on the adapter cable
marked “P2” to the existing cable (disconnected
from the old PMU) marked “Antennas 1-4”.
• Connect the DB-25 connector on the adapter cable
marked “P3” to Port 7 on the back of the new
PMU.
7. Connect the existing cable (disconnected from the old
PMU) marked “RS-232” to the right VDT Interface
connector on the back of the new PMU.
8. Connect the existing wires (disconnected from the old
PMU) marked “+” and “–” to the screw terminals on the
back of the new PMU marked “+” and “–” respectively.
9. Double check the installation using the interconnection
diagram shown in Figure 12.
PORT 7 PORT 5PORT 8 PORT 6
POWER MONITOR UNIT
PORT 1PORT 4 PORT 2PORT 3
Terminal
Connection
Transmitters 1-9
Transmitters 10-18
Transmitters 19-20
Antennas 1-4
188D6451P1 Adapter Cable
P2
P3
P4
P5P6P7P8 P9
+
_
RS-232
Programming
188D6496P1 Adapter Cable
P2
P3
VDT Interfaces
Figure 12 - Connections for Adaptation from Old PMU
10. Set the power switch on the back of the PMU to the
“Off” position.
11. Turn on the main 12V power supply for the cabinet.
INITIAL POWER-UP
After the PMU equipment has been mounted and
checked, you are ready for the initial power-up of the PMU.
1. Temporarily disconnect the data link cable to the Site
Controller computer from the right-hand VDT Interface