Siemens Saturn Iie Epabx Installation Test Procedures Manual

							A30808-X5130-B120-l-8920Issue 1, May 1986
EXPANSION CABINET REF.
L--M--e--\---- -,-,------
-----
BASIC‘CABINET REF.
A5U38-1-4:3:86Figure 2.03Power/Ground Distribution for the SATURN IIE System (Expansion Cabinet)
2-7 (2-8 blank) 
						

							SATURN IIE EPABXA30808-X5130-B120-l-8928Installation Test Procedures
issue 1. May 1986
3.01General. The SATURN HE System must be connectedto an earth ground (i.e., metallic cold water pipe or master groundbusbar) in addition to the safety ground in the ac power cord.
A G-gauge (twisted copper wire) conductor should be connect-ed between the grounding lug E5 located on the bottom of thecabinet frame and the snlccted earth ground (refer to Section
3.00 in the SATURN HE EPABX Installation Procedures prac-
tice for details). The following tests must be performed to en-
sure that proper earth ground connections have been
accomplished, and that ground connections within the cabinet
assembly have not been damaged or loosened during shipment.
WARNiNGHazardous 
voltsgos txkt within the equipment csbinef. Ee
extremely ca-ej’Ll when performing t~s%i~g/l’roubiesh~otingprocedures with the equipment panel(s) removed.
3.02System Grcund Test. Before proceeding with the test’
procedures indicated in Table 3.00, check that the earth
ground connections are secure and ground conductors are
firmly positioned on grounding lug E5 at 
ihe bottom of the
cabinet frame.
3.03Shelf Ground Continuity Test. Each LTU shelf assem-
bly within the cabinet assembly is grounded via two vertical
busbars. Beiore proceeding with the test procedures indicat-
ed in Table 3.01, check that each shelf backplane is iniercon-netted with the busbar flanges and adequately secured into
position.
Table 3.00 
System Ground Test
PROCEDURE
VERlFlCATlONIF VERlFlCATIONIS NOT OBTAINED
.lIf connected, remove ac power cord
from commercial power outlet.
2Short digital multimeter tesi leads
together and noie resistance of test
leads.
3Set digital multimeter to lowestResistance measured should beIf a reading greater 
ihan 2 ohms is
resistance range and connect itsbetweem 0 and 2 ohms greater thanobtained, the faulty ground con-leads between the U-ground pin ofthe measured test lead resistance.nection must be isolated and cor-the ac power cord and the U-groundrected befora continuing wi?h the
socket in the commercial powerinstallation test procedures
outlet (refer to Figure 3.00 for details).
4Repeat procedure with second acSame as step 3 above.Same as step 3 above.
power cord if optional expansion
cabinet is incorporated into system.
Table 3.01 Shelf Ground Continuity Test
STEP
PROCEDUREVERIFICATIONIF 
VERIFICATiONIS NOT OBTAINED
1If connected, remove ac power cord
from commercial power outlet.
2Set digital multimeter to lowestResistance measured should beIf a reading greator than 1 ohm is
resistance range and connect itsbetween 0 and 1 ohm greater thanobtained, the faulty ground connec-leads between ground lug E5 locatedthe measured multimeter test leadtion must be corrected before con-at the bottom of the cabinet frame,resistance.tinuing the installation test pro-and one of the busbar/backplanecedures.
attaching screws for each existing
LTU shelf (refer to Figure 3.01)
3-l 
						

							SATURN IIE EPABXA30808-X5130-B120-l-8928Installation Test ProceduresIssue 1, May 1986
BASIC Cabinet
GND
LUGFuse Box
Facility
(ES) ,
5, B DPower co
PSUfllOVAC~$GOi-fZElElNeulral
Ground
hlatn Cabmel
(Rear View)
Recommended: B-gauge
(iwtsted Copper Wire)
conductor not exceedmgi26 feet m length.
I(Ootlonall
I.1
fMaster Ground Busbar
Earth GroundNote: Single Point Ground (SPG) configuration 
IS shownFigure 3.00 System Ground Test Connections
3-2 
						

							SATURN IIE EPABX
Installation Test ProceduresA30808-X5130-8120-1-8928Issue 1, May 1986
Busbar/
Backplane-Attaching
Screws
GND
LugNo. E5 ’
7-
Recommended: 6 Guage
(twisted copper wire) conductor
not exceeding 126 feet in length.I(Rear View)
Busbar Grounded at
Fuse Box Facility\
IL---_-IPower
Cord Plug
7Master Ground Busbar
Earth Ground
Note: Single Point Ground 
(SPG) configuration is shownFigure 3.01 Shelf Ground Continuity Test Connections
3-3 (3-4 blank) 
						

							I-_SATURN 
IIE EPABX
installation Test ProceduresA30808-X5130-BlZO-l-8928Issue 1, May 1986
SECTION 4.00 POWER-UP TESTS
4.01General. The SATURN IIE System makes use of dis-
tributed power in the equipment cabinet. Several power sup-
plies are used in the system. These power supplies provide
+5Vdc, -SVdc, +12Vdc, -12Vdc, -48Vdc, 90Vac-20Hz ringing
voltage and message waiting voltage, from a 11OVac 60Hzinput power source. After satisfactorily performing the ground
tests 
indicaied in Section 3.00, the following tests must be per-
formed to ensure that proper power cable connections have
been accomplished and that the power supplies inside the
cabinet assembly have not been damaged during shipment.WARNING
Hazardous voltages exist within the equipment cabinet. Beextremely careful when performing testin@roubkshootjng’pmcedures with the equipment panel(s) removed.
4.02Power-Up/Output Voltage Tests. Before proceeding with
the test procedures indicated in Table 4.00, check that all pow-
er cable assemblies are properly secured into their correspond-
ing locations. Note that the test procedures in Table 4.00 include
procedures for testing the optional MSM, when equipped in thesystem.
Table 4.60 Power-Up/Output Voltage Test
YiEPPROCEDtJREf not previously done, extract each
‘CB in the system from its respec-ive backplane connector in basic
md LTU shelves.
Check that all circuit breakers on the‘SU are in the off positions and that311 fuses are inserted in their cor-,esponding locations.
Jsing the digital multimeter (or an
3c polarity indicator), verify that the:ommercial ac power receptacleJsed for powering the systsm has theIroper polarity.
Connect the 
ac power cord(s) to thezommercial ac power receptacle(s).
?lace the following circuit breakerson the PSU to the on (up) position:
a) Basic PS
b) 
-48PSOc) -48PSl (if equipped)
d) LTUPSO (if equipped)
e) 
LTUPSl (if equipped)
9 LTUPS2 (if equipped)
If the optional MSM module is
equipped in the system, proceed 
2sfollows:
2) If not previously done, connect
and insert battery pack into
the MSM assembly.
b)Press the BATTERY TEST
switch on the PSU and
release after verification has
been obtained.VERIFICATION
‘olarity indication must coincide with=igures 3.00 and 3.01.
The associated green LED should
light steadily.IF VERIFICATION
IS NOT 
08TAlNEDif polarity indication does not coin-
cide, correct before proceeding with
the remainder of test in this 
lable.If the green LED remains 
cxtin-guished, the battery pack is below
acceptable voltage limits. Let MSM
charge battery pack and retry test af-
ter 30 minutes have elapsed. If green
LED remains extinguished, the bat-
tery pack is defective and requires
replacement.
‘l-1 
						

							SATURN IlE EPABX
Installation Test ProceduresA30808-X5130-8120-1-8928issue 1, May 1986
Table 4.00 Power-Up/Output Voltage 
Test (Continued)
SE?PROCEDUREVEfiIFICATIONIF VERIFICATION
IS NOT OBTAINED
c) On the PSU, place the circuitThe red LED designated BATTERYIf the red LED remains extinguished,
breaker designated BASIC PS
TEST.should be steadily lit.replace the MSM.
in the off (down) position.
The red BATTERY TEST LED should1d) On the PSU, place the circuitIf the red LED remains steadily lit,
breaker designated BASIC PSbe extinguished.either the cabinet ac power cord is
to the on (up) position.not connected to the commercial ac
power receptacle or a local ac pow-
er failure has occurred.
7Set digital multimeter to appropriateNOTEdc voltage scale for the followingIf further troubleshooting information
tests.
is required during these testing
procedures, refer to SATURN 
IIEEPABXMaintenanceand
Troubleshooting Practice.
8ATo measure the unloaded basic shelf
input voltages, proceed as follows:
a) On basic backplane shown inVoltage measured should read 
be-If reading is not within tolerance, ad-Figure 4.00, take reading be-tween +4.5 and +5.5 Vdc.just +5V ADJUST potentiometer on
tween terminal El, E2, E3 orPSU. If still out-of-tolerance replace
E4 and ground.
PSU.b) On basic backplane connectorVoltage measured should read 
bo-If reading is not within to!erance,J46, shown in Figure 4.00, taketween -43 and -53Vdc.
check the -48P-BASIC fuse in PSU.
readings beiween pins 2 and 3.If fuse is good, replace -48PSO.
c) Set digital multimeter to 
ap-Voltage measured should be be-If the voltage is not present, check
propriate Vat scale and taketween 75 and 100 Vat.and replace RGEN fuse or RAC BAS-reading between pins 1 and 2IC fuse on PSU. If fuses are good,
of J46.
replace RGEN PCB. If voltage still notpresent, replace PSU.
d) Set digital multimeter to appropri-ate Vdc scale and take readings
between the following pins on
basic backplane connector J47
(shown in Figure 4.00):
1) Pins 1 and 3.
2) Pins 2 and 3.Voltage measured should be be-If reading is not within tolerance,
tween -4.9 and 
-5.2Vdcreplace the PSU.
Voltage measured should be 
be-If reading is not within tolerance,
tween -43 and -53Vdccheck the -488 BASIC fuse on PSU.
If the fuse is good, replace -48PS0.
e) On basic backplane connector
J48, shown in Figure 4.00, take
readings between the following
pins:
1) Pins 1 and 4.
2) Pin 2 or 3 and pin 4.
3) Pins 4 and 5.Voltage measured should read 
be-If reading is not within tolerance,
tween -11.3 and -12.7Vdc.replace the PSU.
Voltage measured should be 
be-If reading is not within tolerance,
tween +11.3 and +12.7Vdc.replace the PSU.
Voltage measured should be 
be-If reading is not within tolerance,
tween 4.85 and 5.15Vdc.check that J16 on the rear panel of
the PSU is strapped to the MSM ter-
minal. If the strap is in place, replace
the MSM. 
						

							I-SATURN 
IIE EPABX
Installation Test ProceduresA3G808-X5130-B120-1-B928Issue 1, May 1986
lbb!c 4.00 Power-Up/Output Voltage Test (Continued)
STEPFROCEDUEEVERIFICATIONIF VERIFICATION
IS NOT OBTAINED.f) Connect positive lead of digitalVoltage measured should read +If reading is not 0.05 Vdc, adjust 
+5Vmultimeter to pin 5 of connec- 0.05Vdc.ADJUST potentiometer on PSU. If
tor J48 and negative lead toadjustment is not effective, replace
terminal El on basic 
back-PSU.plane. (Refer to Figure 4.00.)
813After satisfactorily completing step8A, proceed as follows to measure
the loaded basic shelf input voltages.
a) On the PSU, place the circuitThe MSM red LED designated 
BAT-breaker designa?ed BASIC PSTERY TEST should be steadily lit.
in the off (down) position.
b) Plug all previously extracted
PCBs on the basic shelf into
their respective backplane
connectors.
c) On the PSU, place the circuitThe MSM red LED designated BAT-
breaker designated BASIC PSTERY TEST should be extinguished.
in the on (up) position.
d) Repeat measuring proceduresSame verification as in steps 
8A a)
on basic backplane connectorsthrough e), except that -t-S!/& at ter-J46, J47, J48 and terminalsminal El should read between 4.85
El-E4 as indicated in step 8A.and 5.15Vdc under load.
9ATo measure the unloaded LTU shelfinput voltages (if applicable), proceedas follows:
a) On the LTU backplane con-
nector 
J42,shown in Figure4.01,take a reading between
the following pins:
1) Pins 1 and 3.Voltage measured should be 
be-If reading is not within to!e:ance, ad-tween +4.5 and +5.5Vdc.just +5V ADJUST potentiometer on
LTUPS. If the adjustment does not
bring voltage into 
tolerance,replaceLTUPS.2) Pins 3 and 5.
3) Pins 3 and 4.Voltages measured should be 
be-If reading is not within tolerance,
tween -4.9 and -5.2Vdc.replace appropriate LTUPS.
Voltage measured should be 
be-If reading does not coincide with
tween -43 and -53Vdc.verification reading, check the -48PLTU fuse on PSU. If fuse is good,
replace -48PS0.
4) Set digital multimeter to
read 
Vat and connect be-
tween pins 2 and 3.Voltage measured should be be- If voltage isnot present,
tween 75 and 1OOVac.check/replace RGEN fuse or RAC
LTUO fuse on PSU. If fuses are good,
replace PSU.
b) Set digital multimeter to ap-
propriate Vdc scale.
C) On LTU backplane connector
J43,shown in Figure 4.01, take
a reading between the follow-
ing pins:
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							SATURN IIE EPABX
Installation Test ProceduresA30808-X5130-B120-l-6928Issue 1, May 1986
Table 4.00 Power-Up/Output Voliagc? Test (Continued)
STEPPROCEDUREVEFllFlCATlONIF VERIFICATION
IS NOT OBTAINED
1) Pins 1 and 3.Voltage measured should read 
be-If reading is not within tolerance, ad-tween +4.5 and +5.5Vdc.just +5V ADJUST potentiometer onLTUPSO. If adjustment does not bringthe voltage into tolerance, replace
LTUPSO.2) Pins 1 and 2.Voltage measured should read 
be-If reading is not within tolerance,
tween -43 and -53Vdc.replace -48PS0. If voltage not
present, check 
-488 LTUO fuse on
PSU. If fuse is good, replace 48PS0.
3) Pins 1 and 4.
Voltage measured should read 
be-If reading is not within tolerance,
tween +11.3 and +12,7Vdc.replace LTUPSO.
4) Pins 1 and 5.Voltage measured should read 
be-If reading is not within tolerance,-. ttieen -11.3 and -12.7Vdc.replace LTUPSO.
d) On LTU backplane connectorVoltage measured should read 
be-If reading is not within tolerance,
J44 shown in Figure 4.01, taketween +4.5 and +55Vdc.check +5V cabling between be-a reading between pins 1 andtween basic shelf and LTU
2 or pins 1 and 3.
98Repeat steps 9A a) through d) for ex-
pansion cabinet LTU shelf voltages
(if applicable) substituting 
-48PSl for
48Vdc power supply and appropriate
LTUPS.
9CAfter satisfactorily completing steps9A and 96, proceed 2s follows to
measure the loaded LTU shelf input
voltages:
a) On the PSU, place the circuit
breakers designated
LTUPSO,LTUPSl,and LTUPS2
in the off (down) positions.
b) Plug all previously extracted
PCBs on the LTU shelves into
their respective backplane
connectors.
c) On the PSU, place the circuit
breakers designated LTUPSO,
LTUPSl, and LTUPS2 in the
on (up) positions.
d) Repeat measurements on LTUVoltages measured should be within
backplane connectors J42,same tolerances except 
+5Vdc sup-J43, and J44 per step 9A.ply should read between 4.85 and5.15 Vdc.
4-4 
						

							I
SATURN IIE EPABXlnstallatlon Test ProccdurcsA30808-X5130-8120-1-8928Issue I, May 1986
J46/P46
J47/P47
Figure 4.00Location of Input Voltage Connectors 011 Basic Bockplnnc 
						

							SATURN IIE EPABXA30808-X5130-8120-1-8928nstallation Test Procedures
Issue 1, May 1986i
---I
I
:42/?42
J43/P43
J44lP44
Figure 4.0.1Location cf Input Voltage Connectors on LTU Dackp!ane