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User manual
LP11 924 Series - Uninterruptible Power Supply
6 & 10 kVA
Preface
We thank you for selecting a General Electric Digital Energy LP11 924 Series Uninterruptible Power Supply (UPS) and
recommend that you read these instructions carefully before installation and start-up of the UPS.
Please keep this manual in a safe place for future reference and carefully read the important safety instructions in
chapter 1 before installation of this device.
Model: LP11 924
Issued by: Product Document Department – Riazzino - CH
1 - IMPORTANT SAFETY INSTRUCTIONS ................................................................................................................................................................... 3
1.1 - SAVE THESE INSTRUCTIONS ................................................................................................................................................................................................................................................ 3
1.2 - SAFETY WARNINGS AND SYMBOLS ................................................................................................................................................................................................................................. 3
1.3 - GENERAL ....................................................................................................................................................................................................................................................................................... 4
1.4 - INTENDED USE ........................................................................................................................................................................................................................................................................... 4
3.1 - THE PRINCIPLES OF OPERATION ....................................................................................................................................................................................................................................... 9
3.2 - NORMAL CONDITIONS............................................................................................................................................................................................................................................................ 9
4.1 - TRANSPORT .............................................................................................................................................................................................................................................................................. 11
4.5.1.1 - Installation procedure: input voltage 120Vac or 277Vac, output voltage 120/208/220/230/240/277Vac. .......................................................................... 15
4.5.1.2 - installation procedure: input voltage 208-240Vac, output voltage 120/208/220/230/240/277Vac. ........................................................................................ 16
4.5.2 - AVAILABLE INPUT VOLTAGES: HARDWARE MODIFICATIONS ....................................................................................................................................................................................................... 17
4.5.2.1 - Input voltage 120Vac or 277Vac. ...................................................................................................................................................................................................................................... 17
4.5.2.2 - Input voltage 208 or 240Vac. .............................................................................................................................................................................................................................................. 18
4.5.3 - AVAILABLE OUTPUT VOLTAGES: HARDWARE MODIFICATIONS .................................................................................................................................................................................................. 19
4.5.3.1 – OUTPUT VOLTAGE 277vac .................................................................................................................................................................................................................................................... 19
4.5.3.2 - Output voltage 208Vac ........................................................................................................................................................................................................................................................... 20
4.5.3.3 - Output voltage 120Vac split-phase ................................................................................................................................................................................................................................. 20
4.5.3.4 - Output voltage 220/230/240Vac ...................................................................................................................................................................................................................................... 21
4.5.3.5 - Output voltage 120Vac single phase .............................................................................................................................................................................................................................. 21
4.5.5 - INSTALLATION OF EXTERNAL BATTERY CABINET ................................................................................................................................................................................................................................ 23
4.5.6 – OPERATING 2 / 3 / 4 PARALLEL UNITS – ADDITIONAL INFO ......................................................................................................................................................................................................... 25
4.5.6.1 - Notes concerning installation of a parallel system ................................................................................................................................................................................................. 25
4.5.6.2 - Notes concerning starting up the parallel system .................................................................................................................................................................................................. 26
4.5.6.3 - Notes concerning use / maintenance of a parallel system ............................................................................................................................................................................... 27
5.1 - DESCRIPTION OF FRONT AND REAR PANEL .............................................................................................................................................................................................................. 29
5.3.1 - SHUTDOWN OF THE UNIT WHEN LOAD SWITCHING OFF IS ALLOWED ................................................................................................................................................................................. 32
5.3.3 - SHUTDOWN OF THE UNIT WHEN LOAD SWITCHING OFF IS NOT ALLOWED...................................................................................................................................................................... 32
5.4.1 - INFORMATION MENU ......................................................................................................................................................................................................................................................................................... 33
5.4.2 - STATUS AND ALARM MENU ............................................................................................................................................................................................................................................................................ 34
5.4.3 - SERVICE MENU ....................................................................................................................................................................................................................................................................................................... 36
5.4.4 - SET-UP MENU ......................................................................................................................................................................................................................................................................................................... 38
5.5 - TEST SCREENS ......................................................................................................................................................................................................................................................................... 39
5.5.1 - BATTERY TEST, GENERAL .................................................................................................................................................................................................................................................................................. 39
5.5.2 - QUICK BATTERY TEST ......................................................................................................................................................................................................................................................................................... 39
5.5.3 - DEEP BATTERY TEST ............................................................................................................................................................................................................................................................................................ 40
5.6 - OTHER FEATURES .................................................................................................................................................................................................................................................................. 41
8.2 - GENERAL .................................................................................................................................................................................................................................................................................... 45
8.3 - COOLING FAN .......................................................................................................................................................................................................................................................................... 45
8.6 - RECYCLING THE UPS AT THE END OF SERVICE LIFE .............................................................................................................................................................................................. 46
This manual contains important instructions that should be followed during installation and maintenance of the UPS and
batteries. It also gives all necessary information about the correct use of the UPS. Before attempting to install and start
up the UPS, carefully read this manual. Keep this manual next to the UPS for future references.
Full understanding of and compliance with the safety instructions and warnings contained in this
manual are the
ONLY CONDITIONS
to avoid any dangerous situation during installation, operation and maintenance work, and to
preserve the maximum reliability of the UPS system.
GE refuses any responsibility in case of non-observance, unauthorized alterations or improper use of the delivered UPS.
While every care has been taken to ensure the completeness and accuracy of this manual, GE accepts no responsibility
or liability for any loss or damage resulting from the use of the information contained in this document.
This document shall not be copied nor reproduced without the permission of GE.
Due to technical improvements, some of the information contained in this manual may be changed without notice.
1.2 - SAFETY WARNINGS AND SYMBOLS
Safety warnings
The text of this manual contains warnings to avoid risk to persons and to avoid damages to the UPS system and the
supplied critical loads. Do not proceed beyond these warnings if you do not fully understand and/or are not able to meet
the mentioned conditions. The non-observance of the warnings reminding hazardous situations could result in human
injury and equipment damage.
Please pay attention to the meaning of the following warnings and symbols.
WARNING
Refers to procedures or operations which, when not correctly performed, could cause personal injury or
serious damage to the system.
NOTE
Warns the user about important operations or procedures described in this manual.
Safety Symbols
CAUTION
The product may be in danger: when procedures or operations are not correctly performed, damage to
the product may be the result.
DANGER OF PARTS ELECTRICALLY LIVE
Related to all situations with potentially hazardous voltage.
Used when moving the equipment due to the heavy weight.
1.3 - GENERAL
DANGER!
RISK OF ELECTRIC SHOCK.
Some of the parts of the UPS are necessarily under a hazardous voltage
Do not remove the cover; there are no user serviceable parts inside.
There may be danger, loss of life or personal injury if warnings are not strictly observed
CAUTION
There may be damage to the equipment if procedures and practices are not strictly observed and
followed.
NOTE
Do not attempt to service the UPS unless you have had proper training. Refer all maintenance and
servicing to properly qualified, skilled and competent service personnel.
Qualified, skilled personnel are persons who (because of their training, experience, and position as well as their
knowledge of appropriate standards, regulations, health and safety requirements and working conditions) are authorised
to be responsible for the safety of the equipment, at all times whilst carrying out their normal duties and are therefore
aware of, and can report, possible hazards (observe IEC 364, DIN VDE 0105 and national wiring regulations and accident
prevention rules).
1.4 - INTENDED USE
LP11 924 Series UPS are designed to power up emergency lighting equipment and protect form all forms of power
interference, including complete power failure.
CAUTION
DO NOT plug household appliances such as electric heaters, toasters or vacuum cleaners into the UPS.
The technical data as well as information concerning connecting requirements can be found on the rating label and in
this document and shall be strictly observed.
• Move the UPS in an upright position and in its original package to the final destination room.
• To lift the UPS, use a forklift or lifting belts with spreader bars.
• Check for sufficient floor and elevator loading capacity.
• Immediately after unpacking carefully check the integrity of the UPS equipment. In case you note recognizable
damage, do not connect any voltage to the UPS, do not put the UPS into operation, but contact the nearest Service
Centre.
• Store the UPS with its batteries fully charged in a dry location, storage temperature must be within -20 and +45°C (4°F and 113°F)
• If the unit is stored for an extended period of time, the batteries must be recharged periodically. Connect the unit to
the utility and switch it on:
- if the storage temperature is within -20 and +30°C (-4°F and 86°F), recharge the batteries every 6 months, for 24 hours,
- if the storage temperature is within -20 and +45°C (-4°F and 113°F), recharge the batteries every 4 months, for 24 hours.
1.6 - INSTALLATION
• When installing the UPS strictly observe all information on technical data and operating conditions. Comply with all
warnings, and strictly follow the procedures and practices as described in this manual.
• This UPS is intended to be used in a controlled indoor environment and free of conductive contaminants and
protected against animal intrusion.
• Check for sufficient floor loading capacity.
• Avoid placing the unit in direct sunlight or near heat sources.
• It is important that the unit has adequate ventilation. Maintain air movement around and through the unit. Do not
block the air vents.
• The unit must be placed in a sufficiently ventilated area; the ambient temperature for UPS should be in the range of 0
to +40°C (32°F to 104°F). For battery the temperature range should be 20 to 30°C (68°F to 86°F). The battery backup
time will not be optimum outside this temperature range.
• Do not install the UPS in an excessively humid environment or near water (95% no condensing).
• Avoid spilling liquids or dropping any foreign object into the UPS.
• Do not touch electronic components. They may be electrostatic sensitive and are for that reason easily damaged due
to improper handling.
• To avoid potential health risks, electrical components should not be mechanically damaged or destroyed.
NOTE
Refer to table 7 for minimum clearance around the UPS for proper ventilation.
• All electrical connections are to be realized by qualified skilled personnel only.
• In this manual "Earth" is represented with two different symbols:
= Field wiring equipment grounding terminal,
• The UPS should only be powered from a single phase, three wire AC source equipped with an earth connection.
• Use insulated copper input and output wiring, rated 90°C (194°F) wire size based on the capacities given in Tables
310-16 of the Nation Electrical code, ANSI/NFPA 70-2008. Specified in table 2 and table 3.
• When working on live Uninterruptible Power Supplies, be sure to comply with the applicable national accident
prevention rules.
1.8 - OPERATION
DANGER, do not touch output terminals.
The UPS is connected to batteries. The output terminals may be electrically live, even when the UPS is
disconnected from the utility supply. Dangerous voltages may be present during battery operation.
1.9 - MAINTENANCE AND SERVICING
• All maintenance and servicing is to be carried out by qualified skilled personnel only
• Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and the required
precautions. Keep unauthorized personnel away from batteries
• A battery can present a risk of electrical shock and high short circuit current
• Never dispose of batteries in a fire: they may explode
• Do not open or mutilate batteries: their contents may be extremely toxic. If exposed to electrolyte, wash immediately
with plenty of water
• The batteries must be disconnected during maintenance or service work.
• When replacing the batteries, use only the same type and size battery.
• The following precautions should be observed when working on batteries:
- Remove watches, rings or other metal objects.
- Use tools with insulated handles.
- Wear rubber gloves and boots.
- Do not lay tools or metal parts on top of batteries.
- Disconnect charging source prior to connecting or disconnect battery terminals.
- Determine if the battery is inadvertently grounded. If inadvertently grounded, remove source of ground. Contact
with any part of a grounded battery can result in electrical shock. The likelihood of such shock will be reduced if
such grounds are removed during installation and maintenance.
The batteries contain lead, which is a harmful substance for the environment.
Proper disposal or recycling of the batteries is required. Refer to your local codes for disposal
requirements.
1.10 - FCC COMPLIANCE STATEMENT
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.
Modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment
under FCC rules.
1.11 - FIRE REGULATIONS
WARNING
Should a fire break out inside the system, a fire extinguisher with CO2 or halogen must be used. Do not
More than ever before, today's advanced electronic equipment, with complex integrated circuits and other sensitive
electronics, needs a stable and continuous AC power supply to operate correctly. While the power coming from the wall
outlet is often unreliable, a GE Digital Energy LP11 924 Series UPS provides the security of completely uninterrupted
power.
A compact, truly on-line system, the LP11 924 UPS protects your equipment from all forms of power interference,
including complete power failure. A simple and elegant circuit design, together with extensive protection against
abnormal operating conditions (e.g. overload, short circuit, overheating), makes the UPS exceptionally reliable.
The UPS offers complete galvanic isolation of input and output, also when operating in bypass mode. As a result, input
and output voltages do not necessarily have to be equal, making the UPS suitable for almost every situation.
All units are standard equipped with a backfeed protection relay.
The UPS stores electric energy in batteries. This allows the UPS to supply output power even when the incoming utility
power is cut off completely.
Energy is stored as Direct Current (DC), while input and output energy must be Alternating Current (AC). Therefore the UPS
contains an input converter (AC to DC) and an output converter (DC to AC). (fig.2)
3.2 - NORMAL CONDITIONS
Under normal conditions, energy from the utility is channeled through the input converter, which supplies the output
converter and the battery charger. The batteries are kept in a fully charged state, and the output converter synthesizes a
completely new AC output sine wave to supply the load (electrical equipment).
3.3 - UTILITY FAILURE
In the event of a utility power failure (i.e. absent or outside tolerance) the system uses the energy reserve stored in the
battery to continue to produce AC power, ensuring unbroken output (fig. 3). No interruption or alteration will ever be
noticed in the output power.
In the event of an extended utility failure (greater than 90 minutes), the output converter will stop when the battery has
been discharged. At this point, the UPS is no longer able to power the connected equipment.
When the utility is re-established within tolerance, the output converter will be supplied again by the input converter and
the batteries will be recharged, making them ready to support future power failures.
Figure 2: Block diagram of the LP11 924 UPS, utility present
Figure 3: Block diagram of the LP11 924 UPS, utility failure
If the output converter is unable to deliver the demanded output power because of overload or over temperature, the
automatic bypass switch will automatically transfer the load to the utility. When the situation is corrected the UPS will
switch back to normal operation, i.e. the load is transferred back to the output converter. Though the automatic bypass
switch is shown as a simple mechanical switch in figures 2-5, the transfers are done electronically, without any
interruption of the power supplied to the load.
In case of a severe overload or short-circuit the magnetic bypass circuit breaker (rear panel) may trip in order to protect
the UPS. If the current is insufficiently high to trip the breaker, the UPS will be switched off by the software in order to
protect the UPS and connected equipment.
Figure 4: Bypass operation: Automatic bypass
If a power failure occurs during bypass operation, load power may be lost. If the UPS functions under overload conditions it
may not be able to protect the load.
3.5 - MANUAL BYPASS SWITCH (SERVICE SWITCH)
The system can be bypassed manually using the manual bypass switch located at the rear panel. It is a two-position
switch: the normal position is '1': as in figures 2-4. Position '2' is the service position: the load is directly connected to the
utility input. This way maintenance of the UPS is possible without interruption of the power supplied to the load.
Refer service to qualified personnel only. See section 1.3 for further details.
The RFI filters and output transformer are always active.
Move the UPS and battery cabinet in its original package to the final destination room using a pallet truck or forklift.
CAUTION
During transport, pay attention to:
CAUTION
Check for sufficient floor and elevation loading capacity.
Transport the UPS only in upright position.
Do not stack other package on top
4.2 - UNPACKING
UPS: Cut the two wrapping bands, and remove the shipping box. Loosen the four bolts with which the UPS is fixed to the
pallet. Remove the UPS from the pallet.
Batterycabinet: Open the wooden packing around the battery cabinet and remove the shipping box. Loosen the bolts with
which the battery cabinet is fixed to the pallet. Remove the battery cabinet from the pallet.
WARNING!
Pay attention to the HEAVY WEIGHT of the UPS and battery cabinet while unloading from the pallet!
Never try to lift them by yourself!
Immediately after unpacking carefully check the integrity of the UPS and battery cabinet. In case you note recognizable
damage,
• notify the carrier and place of purchase
• contact the nearest GE Service Center.
WARNING! In case of recognizable damage:
DO NOT connect any voltage to the unit
DO NOT put the unit into operation
The UPS is equipped with castors, which allow easy displacement of the unit. Please take appropriate measures to avoid
damage on vulnerable floors.
Recycle the packing material in compliance with all applicable regulations.
4.3 - PACKAGE CONTENTS
The standard package includes:
• UPS
• CD-ROM,
• RS232 cable,
• Insertion Bridge for connecting I/O terminal blocks
• Safety guide and
• This manual.
If the UPS is equipped with an RPA plug-in card (Redundant Parallel Architecture, right option slot at the rear of the unit)
the shipping box also contains:
• This UPS and Battery Cabinet are intended to be used in a controlled indoor environment and free of conductive
contaminants and protected against animal intrusion.
• Check for sufficient floor loading capacity.
• Avoid placing the unit in direct sunlight or near heat sources.
• It is important that the unit has adequate ventilation. Maintain air movement around and through the unit. Do not
block the air vents.
• The unit must be placed in a sufficiently ventilated area; the ambient temperature for UPS should be in the range of 0
to +40°C (32°F to 104°F). For battery the temperature range should be 20 to 30°C (68°F to 86°F). The battery backup
time will not be optimum outside this temperature range.
• Do not install the UPS in an excessively humid environment or near water.
• Avoid spilling liquids or dropping any foreign object into the UPS.
NOTE
Refer to table 7 for minimum clearance around the UPS for proper ventilation.
4.5 – INSTALLATION
NOTE
The UPS may only be installed by qualified and skilled personnel.
Refer to section 1.3 for further details.
CAUTION
Make sure that condensation does not occur as a result of a relatively low temperature of the unit.
Especially if transport took place at sub-zero temperatures, allow the unit to warm up before installation
and starting up.
• When installing the UPS strictly observe all information on technical data and operating conditions. Comply with all
warnings, and strictly follow the procedures and practices as described in this manual.
• Do not touch electronic components. They may be electrostatic sensitive and are for that reason easily damaged due
to improper handling.
• To avoid potential health risks, electrical components should not be mechanically damaged or destroyed.
NOTE
Before making any connection and switching on the LP11 924 UPS, check the following conditions.
• The voltage and frequency of your utility supply is 120/208/240/277 Vac and 50 or 60 Hz.
• Make sure that the UPS is wired for the present utility voltage. This is indicated on the packaging of the UPS, as well as
at the I/O terminals (11 in Fig.19).
• Make sure that the total power requirement of the equipment to be protected does not exceed the rated output
power of the UPS (output power for your unit is indicated on the rating label on the rear panel).
• When using the 120V split phase outputs make sure that the load per 120V output does not exceed half the rating.
• Overcurrent protection for the AC circuit is to be provided by others.
NOTE
To reduce the risk of fire, only connect to a circuit input/output provided with branch circuit overcurrent
protection in accordance with the National Electrical Code, ANSI / NFPA 70, as indicated below:
• The UPS must be grounded when in use: Connect the UPS to a single phase, three wire AC source equipped with an
earth connection.
• Use insulated copper input and output wiring, rated 90°C derated to 40°C, wire size based on the ampacities given in
Tables 310-16 of the National Electrical code, ANSI/NFPA 70-2008.
This wiring shall have the following minimum sizes:
The LP11 924 UPS is capable of taking four input voltage (120V, 208V, 240V and 277V). The required input voltage should
be mentioned at the time of ordering. According to the order the unit will be equipped with right input voltage. For any
input voltage the UPS can be configured to give any one of the output voltages (120V, 208V, 220V, 230V, 240V, 277V).
Before starting the installation UPS must be fixed to the floor as shown in Fig.6a. Mount the levelers in position A to fix the
UPS to the floor, position B to lift the castors from the floor.
Figure.6a. UPS rear view - Mounting positions for levelers
Loosen the screws and remove the conduit boxes (17 in
Make sure that all circuit breakers (7,8,9 in Fig.19) are in ‘off’
Lead the input/output cables through the cable inlet. If the
cables come from below (recommended for 10kVA models),
you can rotate the cable inlet 90 degrees. Connect the input
b in Fig.20). Connect the output
wires to the output terminals (11a in Fig.19). Please refer to
(input) and 4.5.3 (output) for detailed
install the cover plate (11 in Fig.19), conduit boxes (17 in
An emergency shutdown switch can be connected to
connector J3 on the RS232/Contact Interface Card, between
For advanced communication possibilities, the RS232/contact
ort (12a) can be connected to a computer system.
in cards: SNMP Card or Relay Card. See sections 6.3 and
card (Redundant Parallel Architecture). If the card is
alone, a bus
parallel system, see sections 4.5.6 and 7.3 for more
If hardware modifications were necessary in step 5 because
different from the default (277Vac),
software modifications should be performed as well. Proceed
Figure 6b. LP11 924 6&10 kVA
see 4.5.6 / 7.3
3
5
7 8 9
2
4.5.1.1 - INSTALLATION PROCEDURE: INPUT VOLTAGE 120VAC OR 277VAC, OUTPUT VOLTAGE 120/208/220/230/240/277VAC.
If the input voltage is 120V/277V, then the input cables are connected to the input terminals of bottom transformer
cabinet (11b in Fig.20). For external battery pack installation please proceed with section 4.5.5.
If 2 parallel operating units will be installed, please proceed with section 4.5.6.
6
1 – 2 BATTERY
DISCONNECTED
3 – 4 EMERGENCY
SHUTDOWN
2. Loosen the screws and remove the metal access c
Fig.20) to get access to the breakers.
3.
Fig.20) and the cover plate (11 in Fig.19).
4.
position (down). Please refer to fig. 7, step 4.
5. Input/output connection:
wires to the input terminals (11
section 4.5.2.1
information.
6. ReFig.20) and access cover (20 in Fig.20).
7.
pins 3 and 4. See section 6.2 for more information.
8.
interface p
See section 6.1 for more information.
9. The middle ‘option slot’ (13 in Fig.19) allows easy installation of
plug-
6.4 for more information.
10. The right ‘option slot’ (14 in Fig.19) allows easy installation of
the RPAalready mounted, and if the unit is used as standterminator (delivered with the unit) has to be placed in one of
the two bus connectors on the card. If the unit will be part of a
13. For a quick start proceed with section 5.2 ‘Start-up’.
1. Mount the levelers: position A to fix the UPS to the floor,
Loosen the screws and remove the metal access cover (20 in
Loosen the screws and remove the conduit box (17 in Fig.19)
ll circuit breakers (7,8,9 in Fig.19) are in ‘off’
Lead the input/output cables through the cable inlet. If the
cables come from below Recommended for 10kVA model),
onnect the
(input) and 4.5.3 (output) for
install the metal cover plate (11 in Fig.19), conduit box (17
An emergency shutdown switch can be connected to
connector J3 on the RS232/Contact Interface Card, between
For advanced communication possibilities, the RS232/contact
ort (12a in Fig.19) can be connected to a computer
in cards: SNMP Card or Relay Card. See sections 6.3 and
card (Redundant Parallel Architecture). If the card is
alone, a bus
ne of
parallel system, see sections 4.5.6 and 7.3 for more
If hardware modifications were necessary in step 5 because
tages are different from the default (277Vac),
software modifications should be performed as well. Proceed
1 – 2 BATTERY
2 3 4 5 see 6.3-4
see 4.5.6 / 7.3
ON
OFF
7 8 9
10
1
4.5.1.2 - INSTALLATION PROCEDURE: INPUT VOLTAGE 208-240VAC, OUTPUT VOLTAGE 120/208/220/230/240/277VAC.
If the input voltage is 208/240V, then the input cables are connected to UPS input terminals 6,7,8 (11b in Fig.19). Hence
the bottom transformer cabinet is not required
For external battery pack installation, please proceed with section 4.5.5.
If 2 parallel operating units will be installed, please proceed with section
2.
3.
4. Make sure that a
5. Input/output connection:
position B to lift the castors from the floor.
Fig.20) to get access to the breakers.
and the metal cover plate (11 in Fig.19).
position (down).
6. Re-
7.
8.
9. The middle ‘option slot’ (13 in Fig.19) allows easy installation of
10. The right ‘option slot’ (14 in Fig.19) allows easy installation of
6
you can rotate the cable inlet 90 degrees. C
input/output wires to the I/O terminals (11a and 11b in Fig.19).
Please refer to section 4.5.2.2
detailed information.
in Fig.19) and access cover (20 in Fig.20).
pins 3 and 4. See section 6.2 for more information.
interface p
system. See section 6.1 for more information.
plug-
6.4 for more information.
the RPAalready mounted, and if the unit is used as stand-
terminator (delivered with the unit) has to be placed in o
the two bus connectors on the card. If the unit will be part of a