CE+T Power TSI MEDIA 2I User manual

Copyright © 2013. Construction electroniques & telecommunications S.A.
All rights reserved. The contents in document are subject to change without notice.
The products presented are protected by several international patents and trademarks.
Address: CE+T S.a, Rue du Charbonnage 12, B 4020 Wandre, Belgium
www.cet-power.com - [e-mail]
DUAL INPUT INVERTER
The Commercial Power as default source
AC BACKUP IN A DC ENVIRONMENT
Leverage your existing DC infrastructure
ONE STOP SHOP
wide output power range
HARSHEST AC INPUT CONDITIONS
Without compromising the quality of the AC output
BEYOND THE INVERTER
THE NEW GENERATION OF POWER CONVERTERS
www.cet-power.com
TSI MEDIA 2I - 120VAC
User Manual V7.1
Important Safety Instructions and Save these Instructions

2 – TSI Media 2I – User manual – v7.1
Table of content
1. CE+T at a glance ...................................................................................................................................................... 5
2. Abbreviations ........................................................................................................................................................... 6
3. Safety Instructions .................................................................................................................................................... 7
3.1 Disclaimer ........................................................................................................................................................ 7
3.2 Technical care .................................................................................................................................................. 7
3.3 Installation........................................................................................................................................................ 8
3.3.1 Handling ............................................................................................................................................... 8
3.3.2 Surge and transients............................................................................................................................. 8
3.3.3 Other .................................................................................................................................................... 9
3.4 Maintenance .................................................................................................................................................... 9
3.5 Replacement and Dismantling .......................................................................................................................... 9
4. TSI TECHNOLOGY ..................................................................................................................................................... 10
4.1 On-line Mode.................................................................................................................................................... 11
4.2 Safe mode........................................................................................................................................................ 11
4.3 EPC-mode ........................................................................................................................................................ 11
4.4 Mix Mode & Walk-in-mode ............................................................................................................................... 11
5. Design and Description............................................................................................................................................. 12
5.1 Introduction ...................................................................................................................................................... 12
5.2 TSI MEDIA Inverter System ............................................................................................................................... 12
5.3 Theory of Operation.......................................................................................................................................... 12
5.4 System Design ................................................................................................................................................. 13
5.5 System Technical Description ........................................................................................................................... 14
5.6 Environmental Parameters................................................................................................................................ 14
5.7 Typical loads supported .................................................................................................................................... 14
5.8 EMC Standards................................................................................................................................................. 14
6. Building Blocks ......................................................................................................................................................... 15
6.1 Inverter module ................................................................................................................................................ 15
6.2 Sub-Rack ......................................................................................................................................................... 15
7. Accessories .............................................................................................................................................................. 16
7.1 T2S Interface.................................................................................................................................................... 16
7.1.1 Parameters setting................................................................................................................................ 16
7.1.2 System diagnostic and troubleshooting ................................................................................................ 16
7.1.3 On-the-fly monitoring ........................................................................................................................... 16
8. Media 2I Shelves Installation..................................................................................................................................... 17
8.1 Unpacking the System...................................................................................................................................... 17
8.2 Mechanical Installation ..................................................................................................................................... 17
8.2.1 System Dimensions .............................................................................................................................. 17
8.2.2 Fixing.................................................................................................................................................... 17
8.2.3 Mounting Kit ......................................................................................................................................... 18
8.2.4 Pre requisites........................................................................................................................................ 19
8.2.5 Terminations......................................................................................................................................... 19

3 – TSI Media 2I – User manual – v7.1
8.3 Electrical Installation......................................................................................................................................... 20
8.3.1 Connecting AC Input Power .................................................................................................................. 20
8.3.2 Connecting DC Input Power .................................................................................................................. 21
8.3.3 Grounding the System .......................................................................................................................... 22
8.3.4 Remote Monitoring and Control............................................................................................................. 23
8.3.5 Wiring – Receptacle.............................................................................................................................. 26
8.3.6 AC Output Wiring - Hardwired ............................................................................................................... 27
8.3.7 Internal bus (TSI Bus 6 pin / TSI Bus 8 pin)............................................................................................ 28
8.4 Installing Inverter Modules................................................................................................................................ 28
9. Human-Machine Interface......................................................................................................................................... 29
9.1 Inverter module ................................................................................................................................................ 29
9.2 T2S .................................................................................................................................................................. 30
9.3 CANDIS ............................................................................................................................................................ 30
10. System Set up ......................................................................................................................................................... 30
10.1 Communication Setting .................................................................................................................................... 30
10.2 Menu access .................................................................................................................................................... 31
11. Inserting/removing/replacing modules ...................................................................................................................... 32
11.1 TSI Inverter....................................................................................................................................................... 32
11.1.1 Removal ............................................................................................................................................... 32
11.1.2 Inserting ............................................................................................................................................... 32
11.2 T2S .................................................................................................................................................................. 33
11.2.1 Removal ............................................................................................................................................... 33
11.2.2 Inserting ............................................................................................................................................... 33
11.3 Fan replacement............................................................................................................................................... 33
12. Final Check.............................................................................................................................................................. 34
13. Commissioning ......................................................................................................................................................... 35
13.1 Check list ......................................................................................................................................................... 36
14. Trouble Shooting and Defective Situations Fixing....................................................................................................... 37
14.1 Trouble Shooting............................................................................................................................................... 37
14.2 Defective modules............................................................................................................................................ 38
14.2.1 Replacing modules ............................................................................................................................... 38
14.2.2 Return defective T2S interface ............................................................................................................. 38
14.2.3 Return defective shelf .......................................................................................................................... 38
14.2.4 Return defective modules ..................................................................................................................... 38
15. Service .................................................................................................................................................................... 39
16. Maintenance Task..................................................................................................................................................... 40

Release Note:
Version Release date
(DD/MM/YYYY)
Modified page
number Modifications
7.0 03/02/2010 - First release of the Manual.
7.1 30/01/2015 - New Layout.
4 – TSI Media 2I – User manual – v7.1

1. CE+T at a glance
CE+T Power designs, manufactures and markets a range of products for industrial operators with mission critical applications,
who are not satisfied with existing AC backup systems performances, and related maintenance costs.
Our product is an innovative AC backup solution that unlike most used UPS’s
 Maximizes the operator’s applications uptime;
 Operates with lowest OPEX;
 Provides best protection to disturbances;
 Optimizes footprint.
Our systems are:
 Modular
 Truly redundant
 Highly efficient
 Maintenance free
 Battery friendly
CE+T puts 60+ years expertise in power conversion together with worldwide presence to provide customized solutions and
extended service 24/7 - 365
5 – TSI Media 2I – User manual – v7.1
CE+T at a glance

2. Abbreviations
TSI Twin Sine Innovation
EPC Enhanced Power Conversion
REG Regular
DSP Digital Signal Processor
AC Alternating current
DC Direct current
ESD Electro Static Discharge
MET Main Earth Terminal
MBP Manual By-pass
TCP/IP Transmission Control Protocol/Internet Protocol
USB Universal Serial Bus
PE Protective Earth (also called Main Protective Conductor)
N Neutral
PCB Printed Circuit Board
TRS True Redundant Structure
MCB Miniature Circuit Breaker
MCCB Molded Case Circuit Breaker
CB Circuit Breaker
6 – TSI Media 2I – User manual – v7.1
Abbreviations

3. Safety Instructions*
Important Safety Instructions and Save these Instructions.
3.1 Disclaimer
 The manufacturer declines all responsibilities if equipment is not installed, used or operated according to instructions
herein by skilled technician according to local regulations.
 Warranty does not apply if the product is not installed, used and handled according to the instructions in the manuals.
3.2 Technical care
 This electric equipment can only be repaired or maintained by “qualified employee” with adequate training. Even the
personnel who are in charge of simple repair or maintenance are required to have the knowledge or experience in relation
to electrical maintenance.
 Please follow the procedures contained in this Manual, and note all the “DANGER”, “WARNING” AND “NOTICE” marks
contained in this manual. Warning labels must not be removed.
 Qualified employees should have the knowledge to know how to recognize and avoid any dangers that might be present
when working on or near exposed electrical parts.
 Qualified employees should know how to lock out and tag out machines, so the machines will not accidentally be turned
on and hurt the employees that are working on them.
 Qualified employees also should know safety related work practices, including those by OSHA and NFPA, as well as
knowing what personal protective equipment should be worn.
 All operators are to be trained to perform the emergency shut-down procedure.
 This product is intended to be installed only in a restricted access area as defined by UL 60950 and in accordance with the
National Electrical Code ANSI/NFPA 70, or equivalent local agencies.
 Maximum operating ambient temperature is 40°C (104°F).
 This unit is intended for installation in a temperature-regulated, indoor area that is relatively free of conductive
contaminants.
 Never wear metallic objects such as rings, watches, bracelets during installation, service or maintenance of the product.
 This product is suitable for use in a computer room.
 CAUTION – Risk of electric shock. Capacitors store hazardous energy. Do not remove cover until 5 minutes after
disconnecting all sources of supply.
 CAUTION – Risk of electric shock. This Inverter / UPS receives power from more than one source. Disconnection of the AC
source and DC source is required to de-energize this unit before servicing.
 CAUTION - For continued protection against risk of fire, replace only with same type and rating of fuse.
 Insulated tools must be used at all times when working with live systems.
 When handling the system/units pay attention to sharp edges.
* These instructions are valid for most CE+T Products/Systems. Some points might however not be valid for the product
described in this manual
7 – TSI Media 2I – User manual – v7.1
Safety Instructions

3.3 Installation
 Inverter System may contain output over current protection in the form of circuit breakers. In addition to these circuit
breakers, the user must observe the recommended UL listed upstream and downstream circuit breaker requirements as
defined in this manual.
 UL listed (DIVQ) branch overcurrent protections have to be provided by others / by customer.
 Please use extreme caution when accessing circuits that may be at hazardous voltages or energy levels.
 The modular inverter rack is a dual input power supply. The complete system shall be wired in a way that both input and
output leads can be made powerless.
 When AC Mains is not connected, the output AC circuit is considered as a separately-derived source. If local codes require
grounding of this circuit, use the identified terminal for bonding this circuit to the enclosure. Ground the enclosure to a
suitable grounding electrode in accordance with local code requirements.
Ground the enclosure to the electrode terminal (see section8.3.3, page 22).
 Remove output neutral-to-ground jumper when input AC MAINS is connected ( see section 8.3.1, page 20).
 Use 90°C copper wires / conductors only.
 AC and DC circuits shall be terminated with no voltage / power applied.
 The safety standard IEC/EN62040-1-1 requires that, in case of output short circuit, the inverter must disconnect in
maximum 5 seconds. Parameter can be adjusted on T2S; however, if the parameter is set at a value >5 seconds, an
external protection must be provided in order that the short circuit protection operates within 5 seconds. Default setting is
60s.
3.3.1 Handling
 The cabinet shall not be lifted using lifting eyes.
 Remove weight from the cabinet by unplugging the inverters. Mark inverters clearly with shelf and position for correct
rebuild. This is especially important in dual or three phase configurations.
 Empty inverter positions must not be left open. Replace with module or cover.
3.3.2 Surge and transients
The mains (AC) supply of the modular inverter system shall be fitted with suitable Lightning surge suppression and Transient
voltage surge suppression for the application at hand. Manufacturer’s recommendations of installation shall be adhered. It is
advisory to select device with alarm relay for function failure.
Indoor sites are considered to have a working lightning surge suppression device in service.
 Indoor sitesMin Class II.
 Outdoor sites Min Class I + Class II or combined Class I+II.
Note:
Choosing and installing surge arrestors obey to precise technical rules. Distance to equipments to protect, cable gage and cable
routing have significant influence on proper device service.
Some areas are more susceptible to be hit by electrical strikes, especially when altitude increases.
Good earthing is also crucial for surge arrestors to work properly.
CE+T decline any liability in regard to damaged caused to equipments not correctly or not sufficiently protected.
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Safety Instructions

3.3.3 Other
 Isolation test (Hi-Pot) must not be performed without instructions from the manufacturer.
3.4 Maintenance
 The modular inverter system/rack can reach hazardous leakage currents. Earthing must be carried out prior energizing the
system. Earthing shall be made according to local regulations.
 Prior to any work conducted to a system/unit make sure that AC input voltage and DC input voltage are disconnected.
 Prior to accessing the system or modules.
CAUTION – Risk of electric shock. Capacitors store hazardous energy. Do not remove cover until 5 minutes after
disconnecting all sources of supply.
 Some components and terminals carry high voltage during operation. Contact may result in fatal injury.
3.5 Replacement and Dismantling
 ESD Strap must be worn when handling PCB’s and open units.
 CE+T cannot be held responsible for disposal of the Inverter system and therefore the customer must segregate and
dispose the materials which are potentially harmful to the environment, in accordance with the local regulations in force in
the country of installation.
 If the equipment is dismantled, to dispose of the products it consists of, you must stick to the local regulations in force in
the country of destination and in any case avoid causing any kind of pollution.
To download the latest documentation and software, please visit our website at www.cet-power.com.
9 – TSI Media 2I – User manual – v7.1
Safety Instructions

BOOST
DSP
T2S
EMI
FILTER
EMI
FILTER
EMI
FILTER
User
Interface
Redundant
Commuication
Bus
L
N
L’
N’
-
+
Local Signaling
10 – TSI Media 2I – User manual – v7.1
TSI TECHNOLOGY
4. TSI TECHNOLOGY 1
Inverter modules carrying the TSI logo and the EPC mark are triple port converters (AC in, DC in, AC out). Sinusoidal output is
converted from Mains or/and DC.
The block diagram here below gives an explicit description of the topology and operation.
The module is built around the following sub-converters
 AC to DC at input
 DC to DC at input
 DC to AC at output
The energy can flow either from the AC source or the DC source under the control of the local DSP controller. Thanks to internal
energy buffering, the output sine wave is constant and disturbance free regardless of the active source.
The BOOST functionality multiplies the nominal current for a period of 20ms(max) in the event of down stream current surge. The
upstream breakers do not have to be oversized to prevent tripping. After the boost has been activated or if the AC input is not
present the overload capacity is 150% for 15 seconds regardless of the source currently used.
The TSI works according to True Redundant Structure (TRS) that features decentralized and independent logic, redundant
communication bus and three internal levels of disconnection to isolate a module after internal failure.
The functionality is included in every inverter module. Running them in parallel provides a modular system with, no single point of
failure, always conditioned output, high system efficiency and 0ms source transfer time.
1 | Information and data given in this chapter intend to for an overview on the technology. Detailed features and parameters for each individual module type of the
range may differ and should be referred in the dedicated data sheet.

11 – TSI Media 2I – User manual – v7.1
TSI TECHNOLOGY
4.1 On-line Mode
DC is the primary source of supply whilst Mains (AC) works as the secondary source of supply. Switching time between DC input
and AC input is 0ms (source transfer).The power delivered by the DC source (usually a battery , but it could be any other type of
DC generator) is converted to provide regulated and transient free power to the load. In case of short circuit at the load side, the
boost is automatically, timely and energized for a specific duration to trip downstream protective devices.
4.2 Safe mode
Safe mode uses DC as primary source of supply while Mains (AC) is in standby.
Mains (AC) is normally disconnected through internal inlet relay and is only connected when down stream clearance is required
(boost) or if DC is unavailable.
The transfer between DC and AC results in typical transfer time of 10ms.
Typically the safe mode is used in extremely harshed environments such as railways. Under such conditions it provides extra
isolation against disturbances carried by the Mains.
4.3 EPC-mode
Mains input (AC) is the primary source whilst DC works as backup.
The TSI is designed to operate on Mains on permanent basis and to deliver output voltage conditioned with low THD.
There is no physical difference on the output sine wave whether the source is AC (or) DC. If the Mains is out of tolerance or goes
down, the converter seamlessly switches to DC and the converter operates in “Back-up mode” (Switching time back and forth is
0ms).
As soon as the Mains returns in to valid range, the EPC mode is automatically resumed.
The EPC mode offers higher efficiency (up to 96% depending on the model) without compromising the purity of the output sine
wave.
NOTICE: REG modules:
Inverter modules carrying the TSI logo together with REG mark are modules working only with DC input.
Sinusoidal output is converted from DC and the module operates as a traditional inverter. EPC mode and the
boost are not available with REG modules.
4.4 Mix Mode & Walk-in-mode
Under some circumstances DC and AC source can be combined. The sequence is defined by a user selectable set of parameters,
start, control and exit are fully automatic .
A specific example of Mix-mode is the Walk-in mode where the transfer from DC source to AC source is ramped up within a fix
and adjustable period of time.
Setting for Walk -in -Mode and Mix Mode can be made through the T2S supervisor configuration file. See section10, page 30
for more information on T2S supervisor.

12 – TSI Media 2I – User manual – v7.1
Design and Description
5. Design and Description
5.1 Introduction
Media 2I system is shelf mounted power system operates off of both AC and DC input sources to provide conditioned and
uninterrupted power to connected loads. Its unique packaging allows for easy installation and system management.
These products utilize CE+T’s patented TSI technology within the MEDIA Inverters. The TSI with its Enhanced Power Conversion
(EPC) mode is the industry’s most energy efficient option to power conversion solutions.
5.2 TSI MEDIA Inverter System
The TSI MEDIA Inverter System utilizes Twin Sine Inverters (TSI) to provide reliable power for critical AC loads (e.g. CATV, headends,
Telco central offices, local exchanges, industrial applications and data centers).
The system also provides the highest available efficiency among 48Vdc inverter systems, low Mean Time to Repair (MTTR) due the
ability of the inverter modules to be “hot swapped” in the event of an N+1 redundancy, a small footprint and an integrated power
system.
The system is designed to be installed in a climate-controlled environment.
5.3 Theory of Operation
Parallelable, rack-mounted inverter systems provide a pure AC sine wave output at 120V or 240Vac, 60 or 50Hz, with any kind
of load. Utilizing both a 48Vdc and a 120/240V AC input, these high density systems range from 1500VA to 3000VA and are
mountable in a standard 19 inch cabinet or either a 19 inch or 23 inch open relay rack.
Media 2I System - Block Diagram

13 – TSI Media 2I – User manual – v7.1
Design and Description
5.4 System Design
Media 2I is an application modular inverter system specifically designed for clean and temperature controlled environments.
 Telecom grade design.
 Based on MEDIA 48VDC-120VAC TSI module.
 Fully modular.
 Support redundant configurations.
 Support EPC mode.
Rear View

14 – TSI Media 2I – User manual – v7.1
Design and Description
5.5 System Technical Description
MEDIA 2I is a single phase, 1.5 kVA with expandable capacity system set up with two modules for a 3.0 kVA application). All
systems produce 120 Vac nominal outputs. Single phase systems are nominal 120 Vac input. Dual phase systems are 120/240Vac
input (L1, L2, N, Gnd) and 120/240Vac output.
MEDIA 2I Inverter Systems are easily configurable to N+ 1 redundant configuration. N+ 1 redundant system can be achieved in
single phase systems to 3kVA in single shelf systems. Dual phase systems can’t be configured as N+1 redundant system.
Parameter Value
System Capacity 1.5kVA to 3.0kVA
AC Input Voltage 120Vac or 240/120Vac
DC Input Voltage -48Vdc
AC Output Voltage 120Vac or 240/120Vac
Audible noise < 35dB (A)
Cooling Forced convection*
5.6 Environmental Parameters
Parameter Value
Operating Temperature -20°C to +40°C
Storage Temperature -40°C to +70°C
Relative Humidity 95%, non-condensing
Vibration IEC 721-3-3
Shock IEC 721-3-2
*Verify sufficient space is allowed for air circulation and the configuration of the system does not interfere with cooling air
circulation
5.7 Typical loads supported
The TSI MEDIA Inverter System utilizes Twin Sine Inverters (TSI) to provide Telecom-grade reliable power for critical AC loads (e.g.
CATV, Central Offices, local exchanges, industrial applications and Data Centers).
The system also provides the highest available efficiency among 48Vdc inverter systems. Serviceability and low Mean Time to
Repair (MTTR) are minimized by the ability of the inverter modules to be “hot swapped”. The architecture of the system can be
configured for redundancy and a high power density in a smaller footprint resulting in a more efficient use of equipment space.
5.8 EMC Standards
 EN 5502
 FCC 47 CFR Part 15

15 – TSI Media 2I – User manual – v7.1
Building Blocks
6. Building Blocks
6.1 Inverter module
Telecom / Datacom: -48VDC / 120VAC/240VAC, 60Hz.
 The TSI Media is a 1500VA/1200W triple port inverter.
 The TSI inverter modules are hot swappable and hot pluggable.
 The module operator interface is LEDs showing converter status
and output power
 Inverter modules run in single phase or three phase
configurations.
 Fan is equipped with alarm and run time meter. The fan is field
replaceable.
 10.2” (D) x 4” (W) x 3.4” (H)
 6 lbs (2.4 Kg).
6.2 Sub-Rack
 The MEDIA shelf shall be integrated in standard 19 inch network bay frames/relay rack mounting structures or enclosures.
 The MEDIA shelf house max two (2) inverter modules and one (1) monitor unit.
 The MEDIA shelf is designed with common DC input, Common AC input and Common AC output.
 Optional rear cover for IP 20 in open rack
 Max 3kVA per shelf
 12.5” (D) x 19” (W) x 2U (H)
 18 lbs (7.9 kg) empty
MEDIA 2I Inverter Systems are available in two base configurations, as follows:
 1.Single Phase Output with and Without Redundancy with optional AC output receptacles.
 2.Split Phase Output without Redundancy with optional AC output receptacles.

16 – TSI Media 2I – User manual – v7.1
Accessories
7. Accessories
7.1 T2S Interface
The T2S is an interface giving access to the TSI modules that are connected together in any TSI systems.
The T2S doesn’t perform any control or management of the TSI system. It can be removed, replaced or moved to another live
system without affecting neither the original TSI system operation nor the target system.
7.1.1 Parameters setting
The T2S interface is featured with a USB connector at the front. Connected to a laptop, it enables TSI system settings, modules
and phase assignments, and other various adjustments to allow TSI best fit with actual site conditions.
(Operation of T2S is described in separate manual available on request).
7.1.2 System diagnostic and troubleshooting
The T2S is featured with built-in user interface to allow on-line diagnostic through laptop.
Installers and maintenance technicians should always carry proper laptop to access/reconfigure the system on site.
(Operation of T2S is described in separate manual available on request).
7.1.3 On-the-fly monitoring
The T2S monitors max of 32 inverter modules.
The T2S is featured with
 3 outgoing alarms contacts.
 2 digital inputs.
 MOD bus.
 CAN bus (optional).
 Alarm monitoring.
 Record the latest 200 events. FIFO.

8. Media 2I Shelves Installation
8.1 Unpacking the System
Modules are packed separately. They are normally marked to be replaced in the right slot (important for multi phase systems).
Module packing material should be taken apart and stored in case of return under warranty. Unproper packing may void the
warranty.
The packing material of the TSI system is recyclable.
Transport the cabinet in the box on the pallet.
8.2 Mechanical Installation
 Sub-rack is preferable mechanically fixated without modules.
 Min two (2) fixing screws per side of the sub rack.
 Fixing holes for Inch and ETSI mounting frames.
8.2.1 System Dimensions
8.2.2 Fixing
The MEDIA Inverter System is designed to be mounted as part of either an open relay rack or cabinet. Mounting brackets are
provided to allow installation in industry standard 19” or 23” equipment racks. Verify the mounting hardware provided is as
required for your application prior to installation.
 Verify sufficient space is allowed for proper air circulation.
 Verify the following hardware is on hand;
17 – TSI Media 2I – User manual – v7.1
Media 2I Shelves Installation

 Brackets, 2 or 4 each.
 Screws, 2 or 4 each.
Caution: Installation and commissioning must be done and conducted by trained personnel only. Before
conducting any isolation testing, contact the manufacturer for the approved procedure.
8.2.3 Mounting Kit
Step 1: Mount brackets to side of shelf with two supplied screws (Mid Mount shown)
Step 2: Mount shelf to uprights of relay rack or cabinet
18 – TSI Media 2I – User manual – v7.1
Media 2I Shelves Installation

8.2.4 Pre requisites
 The sub –rack have markings for all terminations.
 All cables should be rated at Min 90 deg C.
 Electrical terminations should be tightened with 5Nm.
 Input AC / Output AC / Input DC / Signal cables should be separated
 Cable crossings should be done in 90 deg angles.
 It is recommended to install appropriate breaker at AC input and place a warning label near the breaker
stating message as “ISOLATE UNINTERRUPTIBLE POWER SUPPLY (UPS) BEFORE WORKING ON THIS CIRCUIT”.
8.2.5 Terminations
Rear Side of Media 2I system terminations are clearly marked in the following figure
19 – TSI Media 2I – User manual – v7.1
Media 2I Shelves Installation

8.3 Electrical Installation
 The Earth Ground connection shall be made at the location referenced with the symbol.
 Input ground must be connected to the appropriate terminal.
 Once the frame is secured in its mounting, ensure that the proper earth grounds are made before connecting AC or DC
circuits to the system.
Note: At this point, the Inverter Modules are not installed in the shelf.
If blank PDU extension is mounted, it must be removed to expose AC intput connectors.
Wiring the system is comprised of five operations that must be followed in sequence.
8.3.1 Connecting AC Input Power
The AC input is wired to a screw terminal.
Verify Upstream and downstream AC circuit breakers are open, and make AC input connections as shown below. Verify jumper is
removed before connecting Dual phase AC input wires.
AC Input Current 120 Vac Upstream AC Breaker Recommended Gauge* Connector Type Torque
12A per MEDIA Module
@ nominal power (VA)
30A 1-Pole UL489
20A 2-Pole UL489
120V - #10AWG, 90°C Copper Wire Screw Lock
Connector
4.5 - 5.5
in-lbs
240V - #12AWG, 90°C Copper Wire
*Actual size to be determined by, and in compliance with, local utility codes.
TSI shelf is supplied with screw terminal: Neutral, Line and Ground.
20 – TSI Media 2I – User manual – v7.1
Media 2I Shelves Installation