Siemens Saturn Iie Epabx General Description Manual

							SATURN IIE EPABX 
Installation Procedures A30808-X5130-BllO-l-8928 
Issue 1, May 1986 
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P5070-4.3120186 Figure 4.16 Basic and Expansion Cabinets (Rear View) 
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							SATURN IiE EPABX 
Installation Procedures A30808-X5130-BllO-l-8928 
issue 1, May 1986 
4.05 Power and Distribution Equipment. The SATURN IIE 
System contains several power supply modules of various 
sizes located within the system. Refer to Tables 4.06 through 
4.11 for detailed information on these power modules. The PSU has a connector plug (J2) on its rear panel, J2 con- 
tains jumpers for AC power when no expansion cabinet is 
used. If an expansion cabinet is to be used, remove plug J2 
and connect a second AC power cord (see expansion cabi- 
net installation for further information. 
The PSU module contains the modules shown in Figure 4.19. 
The Repairable Items of the PSU are listed in Table 4.04. 
Table 4.04 Power System Unit (PSU) Repairable Items 
QTY. 
-1 EQUIPMENT REF. PART NO. 
Memory Support Module Table 4.08 L30808-X5130-A34- * -8900 
1 
MSM Battery Pack Table 4.09 L30808-X5130-A51- * -8900 
Table 4.05 Control Lo& Board 
DESCRIPTION: The Control Logic Board, shown in Figure 4.19, is part of the PSU and is not a repairable item. 
It provides access and control point to various system maintenance functions and serves as the 
main AC and DC power distribution point to the following: 
a. AC power, via circuit breakers, to the PSU, the LTUPS 0, 1, and 2, the 48Vdc Power Supplies 
(48PS0 and 48PSl). 
b. Fused -48Vdc outputs for talk battery PlMD,and SLMD applications to all channel groups in 
the basic and LTU shelves, as well as the input to the RGEN module. 
c. Fused 9OVac @ 20Hz for Ringing AC (RAC) and 97Vdc for Ringing Message Waiting (RMW) 
to all channel groups in the basic and LTU shelves. 
1. Indicators. The PSU panel has thirteen grasshopper-type fuses which provide visual 
alarm indications when blown. These fuses and their designations are summarized 
in Table 4.06. There are four LEDs on the control logic board: their functions are as 
follows: 
a. Alarm Indicators. One red LED, designated MAJ. when steadily lit, indicates a 
major alarm condition exists in the system. One yellow LED, designated MIN, 
when steadily lit, indicates a minor alarm condition exists in the system. 
b. Failure Transfer Status Indicators. One red LED, designated ACTIVE, when steadily 
lit, indicates the failure transfer relay subsystem is active. One yellow LED, desig- 
nated INHIBIT, when steadily lit, indicates the failure transfer relay subsystem 
is inactive. The failure transfer relay subsystem is customer-provided. 
2. Switches. The PSU panel contains six switch/circuit breakers. These circuit breakers 
and their PSU panel designations are summarized in Table 4.06. Also, a three-position 
switch, designated FAILURE TRANSFER, is provided on the PSU panel. This switch 
provides a selection of automatic, active, or inhibit operation of the failure transfer re- 
lay subsystem. 
3. Connectors. One modular jack, designated MTCE PHONE, is provided on the PSU 
panel. This jack is used as a termination point for the maintenance test phone. 
4. Strapping Options. If MSMlLCL in the Memory Support Module is equipped, insert con- 
nector J5 on the back of the PSU in MSM receptacle. If MSM is not equipped, insert 
connector 55 in LCL. 
EXT FUSE ALM. If no External Fuse Alarm, insert jumper clip in J15 on the back of 
the PSU. If there is an External Fuse alarm, remove jumper clip from J15. 
OBSERVATIONS: None. 
INSTALLATION None. The equipment cabinet comes equipped with a PSU containing a Control Logic Board when 
PROCEDURES: shipped from the tactory. 
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							SATURN IIE EPABX 
Installation Procedures A30808-X5130-6110-l-8928 
Issue 1, May 1986 
Table 4.08 PSU Front Panel Circuit Breakers and Fuses 
FlO RAC Basic 
Fll RAC LTUO 
F12 FtAC LTUl 
F13 RAC LTUP 
CB No. DESIGNATION 
CBl Basic PS (Ringing AC to Basic Shelf) 
(Ringing AC to LTU Shelf) 
(Ringing AC to LTU Shelf) 
(Ringing AC to LTU Shelf) 
Circuit Breakers 
Functions 
AC Power to Basic Power SUDDIV 1/2A 
112A 
112A 
1/2A 
Rating 
1OA 
CB2 
CB3 LTUPSO 
LTUPSl AC Power to LTU Power Supply 
5A 
AC Power to LTU Power Sumlv 5A 
CB4 
CB5 LTUPS2 
48PS0 AC Power to LTU Power Supply 
AC Power to 48V Power Suoolv 5A 
10A 
CB6 
48PSl AC Power to 48V Power Supply 10A 
NOTE: Fuses Fl through F13 are “grasshopper” type fuses in which a spring wire indicates when a fuse has blown. 
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							SATURN IIE EPABX A30808-X5130-BllO-l-8928 
Installation Procedures Issue 1, May 1986 - I . . . . . . .*i: ..,~%,x~” . . 
.^e.,aM :. L 
P5070-6-320186 Figure 4.17 Power System Unit (PSU) 110 Vat @ 60 Hz (Front View)  
						

							SATURN IIE EPABX 
Installation Procedures A30808-X5130-8110-l-6928 
Issue 1, May 1986 
P5070.5.3!20!86 
4-26 Figure 4.18 Power System Unit (PSU) 110 Vat Q 60 Hz (Rear View)  
						

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SATURN IIE EPABX 
A30806-X5130-BllO-l-8928 
Installation Procedures 
Issue 1, May 1986 
Figure 4.19 Power System Unit (PSU) (Internal View) 
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							SATURN IIE EPABX 
Installation Procedures 
Table 4.07 Ring Generator (RGEN) Module 
I 
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A30809X5130-BllO-l-6925 
Issue 1, May 1986 
DESCRIPTION: 
One RGEN module, shown in Figures 4.19 and 4.20, is part of the PSU and is not a repairable 
item. The RGEN module provides 9OVac rms @ 20Hz for Ringing AC (RAC) and 97Vdc for Ringing 
Message Waiting (RMW) to the basic and LTU shelves; 
OBSERVATIONS: The RGEN module contains a reset type internal fuse (rated @ 5-A), but the associated 5-A fuse 
on the PSU panel is the controlling fuse for the RGEN module. Refer to Figure 4.20 for location 
of this internal fuse. 
INSTALLATION None. The equipment cabinet comes equipped with a PSU containing a Ring Generator Module 
PROCEDURES: when shipped from the factory. 
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							SATURN IIE EPABX 
Installation Procedures A30808-X5130-BllO-l-8928 
Issue 1, May 1986 
-- .-.-_---- 
-.- I 
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Figure 4.20 RGEN Module (Front View) 
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SATURN IIE EPABX 
A30808-X5130-BllO-l-8928 
Installation Procedures Issue 1, May 1986 
Table 4.08 Memory Support Module (MSM) PCB (L30808-X5130-A7- * -8900) 
DESCRIPTION: The optional MSM, shown in Figure 4.19, is contained in a sealed package and is designed to pro- 
vide +SVdc to the memory modules in the Basic Shelf if the local AC power fails. In the event 
of a local power failure, the MSM battery maintains data-stored in memory for at least five minutes. 
When the local power is restored, the battery is capable of another 5-minute cycle after 30 minutes 
of charging. The charging provision is built into the MSM. Access for the battery test is through 
the PSU front panel (labelled BATTERY TEST). See Figure 4.17. 
Note: If optional MSM is installed, adjustment of the PSU 5 Vdc output voltage is required. Con- 
nect voltmeter between J16 MSM connector pin and J9 (5V OUTPUT), located on the PSU 
rear panel. Adjust the +5V ADJUST potentiometer located on the PSU front panel. The PSU 
+5 Vdc output must be adjusted to 50 millivolts below +5MEM1+5B. 
1. Indicators. The MSM has a green and a red LED: 
a. The green LED is controlled by the MSM Battery Test Switch and is normally extin- 
guished when the test switch is not being depressed. When the Battery Test Switch 
is depressed, the LED is lit steadily if the battery is within acceptable voltage limits. 
If the battery is below the acceptable voltage limits, the green LED remains extinguished. 
b. The red LED is normally extinguished. In the event of an AC power failure and the bat- 
tery is powering the memory, the LED is steadily lit. When the AC power source is re- 
stored, the red LED is extinguished. 
2. Switches. The MSM contains one switch called the Battery Test Switch, which is a momen- 
tary switch. When depressed,it disconnects the battery from the charging circuit and con- 
nects it to a test load and battery test indicator circuit. 
3. Strapping Options. MSMILCL. If the Memory Support Module is equipped, remove connec- 
tor J16 on the back of the PSU from the LCL receptacle, and insert it in the MSM receptacle. 
OBSERVATIONS: 
INSTALLATION 
PROCEDURES: None. 
Note: PSU circuit breaker CBl must be in the off position before the MSM PCB is installed in the 
PSU. 
1. The MSM module is installed within the PSU module. No installation preparation is required. 
If replacement is required, perform the following steps: 
a. Remove the seven screws securing the PSU front panel (refer to Figure 4.17). 
b. Remove two screws installed in the vertical partition and two screws installed in the 
base of the PSU chassis. 
2. For installation,locate the two plastic card guides in the PSU which support the MSM PCB. 
Engage the MSM PCB (not the metal backing plate) into the card guides. The MSM PCB 
should engage smoothly into the mating connector at the rear of the PSU. If the connector 
does not engage, check the connector pins for alignment. After the MSM PCB is installed, 
secure the MSM PCB with the two screws removed in step 1. 
3. Install the battery connector wire from the Battery pack into the mating connector on the MSM 
PCB. 
4. Replace the PSU front panel. 
Note: The LCUMSM option strap on the rear of the PSU must be changed before the PSU 
circuit breaker is turned on. 
5. Place PSU circuit breaker CBl in on position. 
6. Refer to the SATURN IIE EPABX Installation Test Procedures practice for further instructions 
to test the MSM operation. 
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SATURN IIE EPABX 
A30808-X5130-BllO-l-8928 
Installation Procedures 
Issue 1, May 1986 
Table 4.09 MSM Battery Pack (L30608-A5130A51- * -8900) 
NO. QTY. 
EQUIPMENT REF. PART NO. 
1 
1 MSM Battery Pack 
V30141-20049~A5- * -8900 
2 1 Mounting Hardware Kit 
C39281-A9675-D2- * -8900 
DESCRIPTION: 
OBSERVATIONS: 
L 
INSTALLATION 
PROCEDURES: The MSM Battery Pack, shown in Figure 4.19, is contained within the PSU module and is always 
required when an MSM PCB is equipped in the system. The Battery Pack provides +SVdc to the 
system’s memory in the basic shelf for a 5-minute period when local power failure occurs. It is capable 
of another Sminute cycle after a 30 minute charge. 
Check for leaky battery. 
NOTE: PSU circuit breaker CBl must be in the off position before the MSM Battery Pack is in- 
stalled in the PSU. 
1. The MSM Battery Pack is installed within the PSU module. If replacement is required, per- 
form the following steps: 
a. To access the MSM Battery Pack, remove the seven screws securing the PSU front 
panel, refer to Figure 4.17. 
b. Remove the two screws on the base plate. Lift the Battery Pack from the alignment 
pin. Remove wire connector going to MSM module and pull out MSM Battery Pack. 
c. Disconnect the Battery Pack connector wire from the MSM PCB mating connector and 
remove the faulty Battery Pack. 
2. For installation attach the battery mounting brackets to the battery. The Battery Pack may 
be manufactured by Sonnenschein or by Gates Energy Products. 
3. Replace the PSU front panel. 
Note: The LCUMSM option strap on the rear of the PSU must be changed before the PSU 
circuit breaker is turned on. 
4. Refer to the SATURN IIE EPABX Installation Test Procedures practice for further instructions 
to test the MSM operation. 
L 
Table 4.10 -48Vdc Power Supply (-48PS) Module, 110 Vat @ 60Hz) (S30050-K5668-X- * -B900) 
QTY. 
EQUIPMENT PART NO. 
1 
-48PS (110/22OV @ 60Hz) Module 
S30050-K5668-X- * -8900 
1 Mounting Hardware Kit 
C39281A9675-D2- * -8900 
DESCRIPTION: The -48PS module, shown in Figure 4.21. is an AC-to-DC converter which provides two -48Vdc out- 
puts. One -48Vdc output is used for talk battery and the other -48Vdc output is used for PlMDlSLMD 
applications (i.e., powering attendant consoles, SDTs) and powering the RGEN module. The sys- 
tem cabinet may contain from one to two -48PS modules. Only one -48PS module is required when 
only the basic cabinet is equipped. When an expansion cabinet is added, a second -48PS module 
is required. 
1. Indicators. None. 
2. Switches. None 
OBSERVATIONS: 3. Strapping Options. The PSU and -48PS module come factory-strapped for 11OVac operation. 
-48PS0 is sufficient for basic cabinet. The additional -48PSl is required when for the expansion 
cabinet is equipped. 
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