Ericsson 19C852636P1 User manual

LBI-39158
ericssonzericssonz
MAINTENANCE MANUAL
POWER DISTRIBUTION PANEL
19C852636P1
TABLE OF CONTENTS
Page
SPECIFICATIONS
...................................................................................................................................
2
INTRODUCTION
.....................................................................................................................................
2
DESCRIPTION
.........................................................................................................................................
2
POWER DISTRIBUTION
........................................................................................................................
2
INPUT POWER
...................................................................................................................................
2
OUTPUT POWER
...............................................................................................................................
2
REMOTE SENSE CONNECTIONS
....................................................................................................
3
MAINTENANCE
......................................................................................................................................
3
PARTS LISTS
...........................................................................................................................................
4
POWER DISTRIBUTION PANEL
.......................................................................................................
4
P0WER DISTRIBUTION PANEL OPTIONS
......................................................................................
5
ASSEMBLY DIAGRAM
..........................................................................................................................
6
POWER DISTRIBUTION PANEL
.......................................................................................................
6
POWER DISTRIBUTION PANEL OPTIONS
......................................................................................
7
CABLES
....................................................................................................................................................
8
SMALL PLUG ASSY (REMOTE SENSING)
......................................................................................
8
SCHEMATIC DIAGRAM
........................................................................................................................
9

LBI-39158 INTRODUCTION
2
SPECIFICATIONS*
DIMENSIONS
Length
Height
Depth
Standard 19-inch rack mount
2 rack units (3.5 inches)
2.75 inches
INPUT CONNECTIONS
Total Connectors
Connector Type
Three: J1, J8, and Buss Bar Studs
J1 and J8 - Amp 641685-2 Four-position connector
Buss Bar from Power Supply to PDP
OUTPUT CONNECTIONS
Total Connectors
Connector Type
Six: J2 thru J7, and Buss Bar Studs
Amp 641685-2 Four-position connector
SENSE CONNECTIONS J9 and J10
INTRODUCTION
This manual documents maintenance information on
the 19C852636P1 Power Distribution Panel (PDP). The
panel was designed for use in any application using the
350A1441 series Power Supply System.
NOTE
References within this manual to low current ±12
Vdc also apply to Redundant Power Supply
Systems providing ±15 Vdc or 24 Vdc. Where
applicable these alternate voltages will be shown
in parentheses.
DESCRIPTION
The PDP provides DC power interconnections between
the Redundant Power Supply (RPS) System and the
individual units within the equipment cabinet. Each
cabinet requires a PDP for power distribution. In some
cases more than one PDP will be required in a single
cabinet.
Each PDP distributes +5 Vdc and ±12 Vdc (or ±15
Vdc/24 Vdc) power provided by the RPS to the individual
units mounted above the PDP. In multiple cabinet
configurations, the RPS output power is routed to the other
PDPs via the main PDP.
POWER DISTRIBUTION
INPUT POWER
High Current (+5 Vdc) enters the PDP via the buss bar
connected between the RPS and PDP stud assemblies. This
power is then routed to J1 thru J8 pins 1 (+5 Vdc) and pin
3 (Ground).
The low current ±12 Vdc (or ±15 Vdc/24 Vdc) power
from the RPS output connector J3 enters the PDP at J1.
When three or more power modules are configured for N+1
operation, the output of the second RPS is routed from
connector J3 to J8 on the PDP.
OUTPUT POWER
The PDP is used to distribute both high and low
current +5 Vdc power and low current ±12 Vdc (or ±15
Vdc/24 Vdc).
The high current output is used when there are
multiple cabinets being serviced by an RPS system mounted
in a central cabinet. This is accomplished by connecting
1/0 gauge cables (19B804346P121, P122) between the high
current studs on the central PDP and the high current studs
on the PDP(s) located in the other cabinets.
* These specifications are intended for use during servicing. Refer to appropriate Specification Sheet for the complete
specification.
NOTE
Copyright August 1995, Ericsson Inc.

MAINTENANCE LBI-39158
3
The low current +5 Vdc and ±12 Vdc (or ±15 Vdc/24
Vdc) is routed to the individual units above each PDP from
the output connectors J3 thru J7. Figure 1 shows the
pinouts for connectors J1 thru J8. When connecting the
low current output to multiple cabinets, the output from the
central PDP is cabled (19B804346P171) from J2 and J8 to
J1 on the remote PDP(s). Refer to the Assembly and
Interconnect Diagrams (LBI-39153 for Voter applications)
for cable identification and routing.
Pin 4 -
-12/15 Vdc
Pin 3 -
Ground
Pin 2 -
+5 Vdc
Pin 1 -
+12/+15 Vdc
Pin numbers are located on the side of the connector next to each pin.
NOTE
Figure 1 - Pin-outs for J1 thru J8
REMOTE SENSE CONNECTIONS
Remote Sensing is provided by connecting the Remote
Sense cable 19B804346P201 between the RPS sense
connector J4 or J5 and the PDP Sense connector J9 or J10.
The sense leads are then connected to the load furthest
from the source. This is accomplished by connecting the
Remote Sense cable 19B804346P202 to J9 or J10 on the
main PDP and connecting the free end to across the load.
Specific connection points will be shown in the application
assembly drawings and interconnect diagrams.
CAUTION
Be sure to observe polarity of the sense leads. J9
or J10 Pin 1 is the 5V(+) Sense (red wire) and pin
2 is the 5V (-) Return Sense (black wire).
NOTE
In some situations it may not be necessary to use
remote sensing. If Remote Sensing is not used, it
will be necessary to connect the two wires (part of
the Small Plug Assembly) to the (+) and GND
Buss Bars as shown in the PDP assembly diagram
(19C852636 Sheet 2).
MAINTENANCE
There is no periodic maintenance required on the
power distribution panel. If, however, the PDP is
dismantled, observe the following torque specifications
when reassembling the unit.
NOTE
Reference designations refer to Assembly Diagram
and Parts List 19C852636P1.
1. Clamp buss bars (Items
4, 5,& 6) to connector buss
rods using Allen head set
screws (Item #13).
Torque set screw to 8-10
in. lb.
2. Install Stud Assemblies
(Item 9). Carefully align
nylon washers (Items 9b
and 9c) to provide insulate
the cap screw from the
front panel (Item #1).
Torque nuts (Item 9f) to
30-35 ft. lb.
3. Replace and secure
back cover (Item #2) using
M3 thread forming screws
(Item #11).
Torque screws to 8-10 in.
lb.
NOTE
CAUTION
NOTE

LBI-39158 PARTS LIST
4
POWER DISTRIBUTION PANEL
19C852636P1 Sheet 1, Rev. 2
SYMBOL PART
NUMBER DESCRIPTION
1 19C852639P1 Front Panel.
2 19C852640P1 Back Cover.
3 19C852641P2 Access Cover Single Panel.
4 19C852645P1 Ground Buss Bar.
5 19C852644P1 (+) Buss Bar.
6 19C852643P1 Low Current Buss Bar (qty. 2).
7 19C852637P1 Small Plug Assembly.
8 19C852635P1 Large Plug Assembly; includes the
following: (8 required per panel.)
344A3804P2 Plug (qty. 1 per Plug Assembly);
sim to Amp 641685-2.
344A3805P1 Contact (qty. 4 per Plug Assembly);
sim to Amp 350650-1.
19C852646P2 Long Buss Rod (qty. 2 per Plug
Assembly).
19C852646P1 Short Buss Rod (qty. 2 per Plug
Assembly).
SYMBOL PART
NUMBER DESCRIPTION
9 19C852638P1 Stud Assembly, includes the
following: (2 required per panel.)
9a N18P25032B6 Hex cap screw, 3/8" x 2" (qty. 1 per
Stud Assembly).
9b N203P25B6 Nut, 3/8" - 16 (qty. 2 per Stud
Assembly).
9c N405P13B40 Lock washer, 3/8" (qty. 2 per Stud
Assembly).
9d N402AP13B6 Flat Washer, 5/16" (qty. 2 per Stud
Assembly).
9e Nylon washer; sim to Micro plastics
17W07512 (qty. 1 per Stud
Assembly).
9f Nylon shoulder washer; sim to
Micro Plastics 12W53007 (qty. 1
per Stud Assembly).
10 19A702381P408 Thread forming screw, M3 (qty. 8).
11 Phillips pan head screw, #8-32 x
1/4" (qty. 2).
12 Lock washer (ext. star) #8 (qty. 2).
13 Set Screw (knurled point), #8-32 x
1/4" (qty. 32).

PARTS LIST LBI-39158
5
POWER DISTRIBUTION PANEL OPTIONS
19C852649G1 - MULTIPLE POWER DISTRIBUTION PANEL KIT
19C852649G2 - SINGLE POWER SUPPLY BUSS BAR KIT
19C852649G3 - DUAL POWER SUPPLY BUSS BAR KIT
PL19C852649 Rev. 0
SYMBOL PART
NUMBER DESCRIPTION
MULTIPLE POWER
DISTRIBUTION PANEL KIT
19C852649G1
1 19C852641P1 Access Cover, Multi-panel.
2 19C852647P1 Multi-panel Buss Bar (qty. 2).
SINGLE POWER SUPPLY BUSS
BAR KIT 19C852649G2
7 19C852648P1 Shield, plastic: PS to PDP Cover.
8 19C852642P1 Main (+) Buss Bar.
9 19C852642P2 Main Ground Buss Bar.
DUAL POWER SUPPLY BUSS
BAR KIT 19C852649G3
7 19C852648P1 Shield, plastic: PS to PDP Cover.
15 19C852647P2 Multi Power Supply (PS1 to PS2)
Buss Bar (qty. 2).

LBI-39158 ASSEMBLY DIAGRAM
6
BACK COVER
(+) BUSS BAR
GND BUSS BAR
LARGE PLUG ASM
FRONT PANEL
HEX CAP SCREW
LOW CURRENT BUSS BAR
M3 THREAD FORMING SCREW
(6 PLCS)
SMALL PLUG ASM
J9 AND J10
ACCESS COVER, SINGLE PNL
J1 THRU J8
ATTACH J9/J10 SENSE LEADS:
RED TO (+) BUSS BAR (5)
BLACK TO GND BUSS BAR (4)
(FIRST HOLE IN FROM END)
FAR SIDE OF BUSS BARS
ASSEMBLE FLUSH WITH ENDS
M3 THREAD FORMING SCREW
(2 PLCS)
10
2
5
4
6
8
1
7
10
3
FASTEN RED WIRE TO (+) BUSS BAR (5) &
USING #8-32 x 1/4" SCREW (11) WIT H LOCK
WASHER (12).
BLACK WIRE TO GND BUSS BAR (4)
NOTE
9e
9f
9a
J8
J10J9
NOTE
OF BUSS RODS
9b
9d
J1
9c
STUD ASM
9
SET SCREW
13
(32 PLCS)
POWER DISTRIBUTION PANEL
19C852636P1
(19C852636, Sh. 2, Rev. 2A)

ASSEMBLY DIAGRAM LBI-39158
7
(+) MAIN BUSS
MAIN GND BUSS
MULTIPLE PWR SUPPLY BUSS
MULTI PANEL BUSS
FRONT PANEL
19C852639
STUD ASM
19C852638
HARDWARE
P/O STUD ASM
19C852638
LOCATION FOR POWER CONFIGURATION LABEL
SAMPLES: (1/4" HIGH LETTERING)
+5, +/-12 VDC
+5, +/-15 VDC
+24 VDC
ACCESS COVER
SINGLE PNL
19C852641P2
ACCESS COVER
SHIELD, PLASTIC
INSTALL WASHERS AND THREAD
NUTS ONTO STUDS HAND TIGHT
INSTALL USING EXISTING
FASTENERS ON PWR SUPPLY
2
7
SHIELD, PLASTIC
7
MULTI PNL
1
8
9
15
POWER DISTRIBUTION PANEL BUSS BAR OPTIONS
(Made from 19C852650, Sh. 1, Rev. 1)

LBI-39158 CABLE DIAGRAM
8
1
2
3
4
56
1
2
3
4
5
6
ALL WIRES 22 AWG
J1
J2
6" BLACK 22 AWG
6" RED 22 AWG
3" 22 AWG
SEE CONNECTION DIAGRAM
6 PLACES
1
2
#8 SOLDERLESS TERMINAL
CLOSED/OPEN BARREL
INSULATED/NOT INSULATED
1
J3
ITEM
VENDOR # OR EQUIV
DESCRIPTION QTY
CONNECTOR HOUSING
19B801802P43 AMP 172160-1
CONNECTOR19B801802P2 or P4 AMP 170365-3 or
170361-3
170362-3
170366-3
J1
J2
1
6
PARTS LI ST
J3 2
SAME AS J1 (INCLUDE JU MPERS FOR J3 AS SHOWN)
SI MILAR TO #
19B209260P24 #8 TERMINAL
1
2
3
4
5
RED
BLACK
BLUE
GREEN
ORANGE
CONNECTION DIAGRAM
COLOR
1
2
3
4
5
J1 J2 J3
1
2
6" J UM PERS
3" J UM PERS
5V(+) SENSE
5V(-) RETURN SENSE
PS ALARM
CS B U S
SYNC
REMOTE SENSING - SMALL PLUG ASSY
19C852637P1
(19C852637, Sh. 1, Rev. 1)

SCHEMATIC DIAGRAM LBI-39158
9
(+) Buss Bar -
Item #5
J2 thru J8
1
2
3
4
GND Buss Bar
- Item #4
(+)
(GND)
1
2
3
4
J1
+12/+15 Vdc
-12/15 Vdc
+5 Vdc
Ground
From RPS Output
Connector J3
+12/+15 Vdc
-12/-15 Vdc
+5 Vdc
Ground
Output to Equipment
and other PDPs.
Low Current
Buss Bar Item #6
Figure 2 - PDP Schematic Diagram

Ericsson Inc.
Private Radio Systems
Mountain View Road
Lynchburg, Virginia 24502
1-800-528-7711 (Outside USA, 804-528-7711) Printed in U.S.A.