ASCOM NU Series User manual

P/N PM000223A Rev. 1
Installation Manual
NU-Series Hardware

Copyright
© 2017 Ascom (US), Inc.
This document may not be copied in whole or in part or otherwise reproduced without
prior written consent from Ascom, except where specifically permitted under US and
international copyright law.
Disclaimer
The information in this document is subject to change. Use this product only in
accordance with the instructions provided in the installation and user guide manuals. Use
this product only in accordance with the purposes for which it is designed. For the latest
version of all Ascom documentation, contact your local supplier or visit the Ascom Partner
website at https://www.ascom-ws.com.
HIPAA disclaimer
All examples of personal or protected health information in this document are fictitious.
Any resemblance to a real person or facility is purely coincidental. The owners and users of
this product are solely responsible for complying with all protected health information
privacy laws. The users, by their use of this product, agree to indemnify the manufacturer
or seller of this product against all claims, litigation, and suits filed for protected health
information violations.
European Union directives
The European directive “Waste Electrical and Electronic Equipment” (WEEE)
aims to minimize the impact of electrical and electronic equipment waste on
the environment and human health. To conform to this directive, electrical
equipment marked with this symbol must not be disposed of in European
public disposal systems. European users of electrical equipment must now return end-of-
life equipment for disposal. Further information may be found on the following website:
www.recycle-this.info.
Battery Disposal
This product may use sealed lead-acid batteries. Please refer to manufacturer instructions
and all state, provincial, and local codes for information, instructions and requirements
regarding proper disposal.
Environmental Requirements
• Refer to the installation guide and product data sheet for complete product ratings and
information.
• Avoid exposing the device to direct sunlight or other heat sources.
• Do not expose the device to open flame.
• Keep the device away from excessive heat and moisture.
• Protect your device from aggressive liquids and vapors.
• Keep the device away from strong electromagnetic fields.

Regulatory Compliance (US/CAN)
The following complies with the relevant dates and amendments of all the following
standards.
IEC 60950 CB, IEC 62368 CB, EN 55024 (CISPR24) Class B, EN 55032 (CISPR32) Class B,
RoHS, REACH, VDE 0834, HTM 08-03
ANSI/UL 1069, ANSI/UL 2560, CAN/CSA C22.2 No. 205, FCC part 15B, ICES-003
AS/NZS CISPR24/32, AS/NZS 3811
FCC Compliance
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is
• connected.
• Consult the dealer or an experienced radio or television technician for help.
Information to user:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: i) this device may not cause harmful interference, and ii) this device must
accept any interference received, including interference that may cause undesired
operation.
This device complies with Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils
radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
CAN ICES-3 (B)/NMB-3(B)
Modifications:
Changes or modifications to the equipment not expressly approved by the party
responsible for compliance could void the user's authority to operate the equipment.

Regulatory Compliance
The Telligence units described in this document comply with NFPA 99 Health Care Facilities
Code and ANSI/UL 1069 Hospital Signaling & Nurse Call Equimpment regulatory
requirements. All units have been designed and tested under National Recognized Testing
Laboratory (NRTL) conditions to have no reaction to electromagnetic interferences (EMI) or
electrostatic discharge (ESD) phenomena. The Telligence system is UL listed under file
E23929.
The Telligence units described in this document also comply with CAN/CSA C22.2 No.
205-12, DIN VDE 0834 (2016) Parts 1 and 2, and HTM 08-03 (2013).
The Telligence system can be connected to listed or recognized smoke detectors and fire
alarm systems for secondary, supplementary or informational purposes only. The Telligence
system is not a fire alarm control unit. Any fire alarm signaling annunciated by the
Telligence system is considered supplementary only. A code-compliant fire alarm signaling
system is required to reduce the risk of injury or death.
Warning: Auxiliary hardware and supplementary equipment connected to or interfaced
with the Telligence system are not considered to be part of the listed system configuration
unless the equipment in question is marked or identified in this manual as being in compli-
ance with the ANSI/UL 1069 Standard for Hospital Signaling and Nurse Call Equipment.
Before connecting auxiliary hardware to an auxiliary input, staff must be trained and certi-
fied in using the auxiliary hardware properly.
Auxiliary hardware that may be connected to this system must be UL Listed to UL/IEC/EN
60601. Auxiliary hardware must have a latching, normally open, dry contact relay, and
must also provide a cable that has a standard 1/4-inch (0.64 cm) plug.
Intended Use
The primary intended purpose of the Ascom Telligence System is to provide audible and
visual communication between patients/residence and staff in health care facilities.
Notification and signaling of call system events is accomplished via audible tones and
visual indications which alert staff of the source (e.g., room, patient care area, or space)
and nature of the event (e.g., request for help or assistance, code, or emergency.)
Primary signaling and notification is accomplished via Telligence equipment which is
installed as part of the facility infrastructure. Primary signaling and notification is directed
to fixed health care delivery areas and locations (e.g., nursing units, staff areas and
patient/resident rooms.) Supplementary signaling and information can be directed to
remote locations, individuals or groups of individuals via external communication systems
and devices such as pagers and wireless phones.
Supplemental signaling and information can be directed to remote locations, individuals or
groups of individuals via external communication systems and devices such as pagers and
wireless phones.
Indications For Use
Call system events are initiated manually by patients/residents, staff, or visitors via push
button or pull chain actuation of Telligence equipment. Call system events can also be
initiated by externally connected devices such as bed exist sensors, smoke or fire detection
systems, security systems, environmental systems and medical electrical systems that
incorporate relay closure circuits which are approved for connection to a call system.

Terms Used in This Manual
Specialized terms are used throughout this manual. The first time we use a term, we
define it in the text.
Open Source License Notification
Certain components of the software included with Ascom products use Open Source
software, including software licensed under the GNU General Public License ("GPL") the
Lesser GNU General Public License (“LGPL”), among other “open source” or “free
software” licenses (“Open Source Software”).
Each item of Open Source Software is licensed under the terms of the end-user license
that accompanies such Open Source Software. Ascom in no way limits or supersedes, the
terms and conditions of any applicable end user license for the Open Source Software.
Most open source packages are used unmodified, but where required, Ascom has
modified the open source package to perform the functions required by Ascom products.
Ascom makes the open source software and any modifications available consistent with
the terms of any third party software licenses.
For more information, regarding the open source packages included in Ascom products,
please visit: http://oss.ascom-ws.com.

P/N PM000223A • Rev. 1 • ISS 9 August 2017 i
Installation Manual
NU-Series Hardware Contents
1 Introduction ...................................................................................................................................1
1.1 General .................................................................................................................................. 1
1.2 Installation and Commissioning .............................................................................................. 1
1.3 System Overview .................................................................................................................... 2
1.4 System Buses ......................................................................................................................... 3
1.4.1 Hallway Bus ................................................................................................................... 4
1.4.2 Addressing Hallway Bus Devices ..................................................................................... 5
1.4.3 Active Room Bus ............................................................................................................ 5
1.4.4 Addressing Active Room Bus Modules ............................................................................ 6
1.4.5 Passive Room Bus ........................................................................................................... 7
1.4.6 IP Bus ............................................................................................................................. 7
2 System Cabling ..............................................................................................................................8
2.1 System Overview .................................................................................................................... 8
2.2 Cable Connections ................................................................................................................. 9
2.2.1 Cable Guidelines ............................................................................................................ 9
2.2.2 Hallway Network Power Cable ....................................................................................... 9
2.2.3 Room Bus Cables ........................................................................................................... 9
2.2.4 Pulling Cable and Wire ................................................................................................. 10
2.2.5 Labeling Cable and Wire .............................................................................................. 10
2.3 Preparing the Room Bus Cables ............................................................................................ 10
2.4 Terminating Cables ............................................................................................................... 10
2.4.1 Terminating Cat 5/5e/6/7 Connectors ........................................................................... 10
2.4.2 Terminating Block Connectors ...................................................................................... 12
2.4.3 Terminating Passive Room Bus Connectors ................................................................... 13
2.4.4 Disconnecting a Wire from a Block Connector .............................................................. 14
2.5 Hallway Bus ......................................................................................................................... 15
2.5.1 Daisy Chaining Hallway Devices .................................................................................... 16
2.6 Active Room Bus .................................................................................................................. 17
2.6.1 Active Bus Connections ................................................................................................ 18
2.7 Migrating teleCARE M to Telligence ..................................................................................... 19
3 System Power ...............................................................................................................................21
3.1 Mains Power Setup .............................................................................................................. 21
3.1.1 Uninterruptible Power Supply ....................................................................................... 22
3.1.2 External Power Supply .................................................................................................. 23
3.1.3 teleCARE M Power Supply Wiring ................................................................................ 25
3.1.4 Power Supply Basic Installation ..................................................................................... 25
3.2 Hallway Power Supply .......................................................................................................... 25
3.3 Active Bus Power Supply ...................................................................................................... 26
3.4 Passive Room Bus Power Supply ........................................................................................... 26
4 Control Equipment .......................................................................................................................27
4.1 Gateway II (NGGTWY2) ........................................................................................................ 28
5 IP Devices .....................................................................................................................................30
5.1 NGTDSP and NGWDSP Touch Screen Display ........................................................................ 31
5.2 Supplementary IP Devices ..................................................................................................... 34

P/N PM000223A • Rev. 1 • ISS 9 August 2017 ii
Installation Manual
NU-Series Hardware Contents
5.3 System Manager (NISM2) .....................................................................................................34
5.3.1 NISM2 Electrical Connections ....................................................................................... 35
5.3.2 Ethernet LAN Cable for Facility Network ....................................................................... 35
5.3.3 NISM2 Internal Power Supply ....................................................................................... 36
5.3.4 External DC Power Supply ............................................................................................ 37
5.3.5 Setting the type of Power Supply in the NISM Advanced Settings ................................. 37
5.3.6 Connecting a Paging System ........................................................................................ 38
5.4 NUCD12IP Corridor Display ..................................................................................................40
5.4.1 Corridor Display Features and Components .................................................................. 41
5.4.2 Dimensions and Weights .............................................................................................. 42
5.4.3 Corridor Display Power Requirements ........................................................................... 42
5.4.4 Corridor Display Electrical Connections ......................................................................... 43
5.4.5 Connecting the LAN Cable ........................................................................................... 43
5.4.6 Mounting the Corridor Display ..................................................................................... 44
5.4.7 Resetting to Factory Default ......................................................................................... 53
5.5 Telligence Bridge .................................................................................................................. 55
5.6 Innovaphone VoIP Gateway .................................................................................................. 55
6 Hallway Devices ............................................................................................................................56
6.1 Preparation .......................................................................................................................... 56
6.2 NUDL-Series Dome Light ...................................................................................................... 57
6.3 NUPBC Passive Bus Concentrator ......................................................................................... 62
7 Room Modules .............................................................................................................................66
7.3 NIAT Television Interface Module .......................................................................................... 68
7.3.1 Terminating a TV to NIAT Connection ........................................................................... 69
7.3.2 Terminating a NIAT to NUBM3X Connection ................................................................. 69
7.3.3 Using the NUHS14B Handset for TV Audio ................................................................... 69
7.3.4 Television Interface Module Electrical Connections ........................................................ 70
7.4 Button Insert Kits ................................................................................................................. 71
7.4.1 Inserting Customizable Button labels ............................................................................ 71
7.5 NUBM3 Customizable Bedside Module ................................................................................ 73
7.6 NUBM3X Bedside Extension Module .................................................................................... 76
7.7 NUCL4 Light Module ............................................................................................................ 80
7.8 NUCPS and NUEPS Cardiac and Emergency Pull Switches Module ........................................ 84
7.9 NUDM3 Customizable Button Module ................................................................................. 86
7.10 NUIOM Active I/O Module .................................................................................................. 89
7.11 NUMI2 External Input Module ............................................................................................ 93
7.12 NUPC Pull Cord Module .....................................................................................................95
7.13 NURD Room Display Module .............................................................................................. 99
7.14 NUSPM Speech Module ................................................................................................... 102
7.15 NUSB2 Sunblind Control Module ..................................................................................... 105
7.16 NUBM3P Passive Bedside Module ..................................................................................... 108
7.17 NUCL4P Passive Light Module .......................................................................................... 111
7.18 NUDM3P Passive Customizable Button Module ................................................................ 116
7.19 NIPC-W3P Passive Pull Cord Module ................................................................................. 119
7.20 NIPC2-WAP Passive Pull Cord Module .............................................................................. 122

P/N PM000223A • Rev. 1 • ISS 9 August 2017 iii
Installation Manual
NU-Series Hardware Contents
7.21 NUHS-Series Handsets ......................................................................................................126
7.22 NUMDC Medical Device Cable ......................................................................................... 128

P/N PM000223A • Rev. 1 • ISS 9 August 2017 1
Installation Manual
NU-Series Hardware Introduction
1 Introduction
This installation manual covers the mechanical and electrical installation of the Ascom
Telligence system devices and room modules.
Throughout this document, there are cross-references to additional information found in
other sections of the manual. Cross-references appear as blue links. Mouse over a cross-
reference, and then click the left mouse button to jump to the referenced section. Press
Alt+LeftArrow to return to the previous page.
Note: Features described throughout this document may not be applicable or
available in all jurisdictions.
1.1 General
The Ascom Telligence System is a Local Area Network (LAN) based call system for
hospitals, nursing homes, residential care, and other facilities. The LAN infrastructure is
used for sending information generated in the system, such as calls, staff presence,
medical alarms, technical alarms, etc.
The Ascom Telligence System operates on a Ethernet LAN 10/100 BaseT network, using a
Cat 5/5e/6/7 structured wiring. The network can be a dedicated network or a third-party
network depending on local jurisdictions.
1.2 Installation and Commissioning
The installation and commissioning of the Ascom Telligence System shall only be
undertaken by Ascom trained and certified technicians and carried out in accordance with
all applicable regulations.
The Ascom Telligence System must be installed in accordance with the installation
instructions provided in this manual and those provided in the installation sheets
associated with individual Telligence products.
The Ascom Telligence System equipment should only be installed when the building work
is completed and when the environment is clean, dry, and totally weatherproof. The
acceptable environmental conditions for the Ascom Telligence System is 0°C- 50°C
(32°F - 122°F) with a maximum relative humidity of 95% (non-condensing).

P/N PM000223A • Rev. 1 • ISS 9 August 2017 2
Installation Manual
NU-Series Hardware Introduction
1.3 System Overview
The following is a system overview of the components for the control equipment, IP
devices, and room modules.
Figure 1 System Overview
Control Devices
•Gateway II: The Gateway II (NGGTWY2-H) processes state changes in the system.
•PoE Switch: A PoE switch provides power to system IP devices and is required to
implement the system LAN.
IP Devices
•Touch Screen Display: Touch Screen Displays (NGTDSP and NGWDSP) are the primary
means for displaying events and audio communication between staff and patients or
other staff members. When patients place calls from their patient stations, the calls are
annunciated at the Touch Screen Display.
Hallway Devices
•Dome Lights: Dome lights (NUDL-series) reside on the hallway bus and are installed
between the Gateway II and the room modules. Dome lights pass the room devices
state changes to the Gateway II for processing.
•Passive Bus Concentrator: Passive Bus Concentrators (NUPBC) reside on the hallway
bus and are installed between the Gateway II and the passive room modules. NUPBCs
only support passive room modules and forwards state changes to the Gateway II for
processing.
Room Modules
•Active Room Modules: Active room modules connect to dome lights via active room
buses. Active room modules provide inputs to the system, such as button presses,
contact closures from auxiliary devices, and functions on room displays. Some provide
visual and audible feedback and/or control auxiliary devices via relays. You can set up a
speech session to communicate with patients without having to enter the room.

P/N PM000223A • Rev. 1 • ISS 9 August 2017 3
Installation Manual
NU-Series Hardware Introduction
•Passive Room Modules: Passive room modules connect to NUPBCs via passive room
buses. As with active room modules, passive room modules also provide inputs to the
system and provide visual and audible feedback.
Supplementary Devices
•Telligence Bridge Computer: The Telligence Bridge is a software package that is
installed on a desktop-grade computer or a server-grade computer and is required for
all Telligence systems. The Telligence Bridge allows installers to configure the Telligence
Database.
•System Manager: The System Manager (NISM2) is a management tool that controls
corridor displays and room displays.
•Corridor Display: The Corridor Display (NUCD12IP-H) is a supplementary messaging
display in Ascom Telligence Systems. It contains a PoE interface and connects directly to
the Ethernet network. The corridor display has a large character indicator and a
signaling buzzer.
•Innovaphone: The Innovaphone is a VoIP gateway supporting all the features of a
traditional PBX.
1.4 System Buses
The Ascom Telligence System uses system buses to transfer voice and data between its
control devices, hallway devices, room modules, and IP devices. Communication between
the control devices and hallway devices are carried via hallway buses. Communication
between hallway devices and room modules are carried via room buses, which can be
either active or passive. Communications between PoE switches and IP devices are carried
via an IP bus.
The following figure illustrates a system with each of the different buses: hallway bus,
active room bus, and passive room bus, and the components on each bus.
Figure 2 System buses with controllers and modules

P/N PM000223A • Rev. 1 • ISS 9 August 2017 4
Installation Manual
NU-Series Hardware Introduction
Legend
(1) Gateway II (NGGTWY2)
(2) Hallway bus power
(3) Hallway bus data
(4) Passive Bus Concentrator (NUPBC)
(5) NU-series active dome light (NUDL4S)
(6) Passive room bus
(7) Active room bus
(8) NU-series passive light (NUCL4P)
Caution: The Telligence system is an electrically supervised system, except for the
passive devices connected to the passive room buses.
1.4.1 Hallway Bus
The hallway bus is controlled by the Gateway II control equipment. The Gateway II sends
data and voice via a Cat 5/5e/6/7 cable and it sends power via a separate wire pair to a
combination of active NU-series dome lights and NUPBCs, which are connected to the
hallway bus. These devices, in turn control the room buses and communicate with the NU-
series active room modules connected to the dome lights and existing passive HC-series
Telligence room modules connected to the NUPBCs. The following graphic illustrates the
system setup using a dome light to communicate with active modules and a NUPBC to
control passive modules.
Figure 3 Hallway bus with Gateway II in combination with NUPBC and dome light
Legend:
(1) Gateway II
(2) Power from Gateway II to hallway devices
(3) Daisy-chained hallway bus
(4) Passive Bus Concentrator (NUPBC)
(5) Dome Light (NUDL2S/NUDL4S)
The Gateway II supplies 36VDC (2x100W) hallway power to dome lights and NUPBCs
through 16 AWG single pair cables connected to separate Port A (100W) or Port B (100W)
output screw terminal blocks on the rear panel.
The Gateway II supports 40 devices on the hallway bus (dome lights or NUPBCs). A
Telligence extension license extends the support to 80 devices (40 devices Port A, 40
devices Port B).
Each NU-series dome light and NUPBC has six DIP switches for hallway bus addressing.
This allows for replacement of broken devices without affecting the configuration.
Alternatively, a serial number-based configuration is possible with the use of the Software
Configuration Tool. However, when replacing broken devices that were addressed using
the Software Configuration Tool, the new device must also be addressed using the
Software Configuration Tool.

P/N PM000223A • Rev. 1 • ISS 9 August 2017 5
Installation Manual
NU-Series Hardware Introduction
Note: You cannot use DIP switches and serial number-based addressing to set
hallway and room bus addresses in the same system. Use one method, only.
When a Gateway II first powers up (initializes), it starts the device identification process.
Connected devices shall be requested to respond. On subsequent power-ups, the
Gateway II starts the device identification process to determine which connected devices
were previously connected and which are new. The Gateway II begins by identifying the
dome lights and NUPBCs based on stored data. Once the Gateway II identifies the known
devices, it then requests identification from the new devices on the hallway bus. The
Gateway II then requests identification and other information about any room modules
connected to the room buses. When all devices connected to the buses have been
identified, they can be configured and set to Normal Operation mode. Their current state
is then stored.
1.4.2 Addressing Hallway Bus Devices
The NUPBC, NUDL2S and NUDL4S contain DIP switches used to set its hallway bus
address. You can also use the Software Configuration Tool for serial number-based
addressing. However, you cannot use a combination of DIP switches and serial bus
addressing. Choose one method, only. The address range is 0-39.
1.4.3 Active Room Bus
The NU-series domes lights (NUDL4S and NUDL2) reside on the hallway bus and control
the active room buses. The NUDL4S is a four-segment, multi-colored light on the hallway
bus. The NUDL2S is a two-segment variation. The figure below shows a system setup with
an NUDL dome light.

P/N PM000223A • Rev. 1 • ISS 9 August 2017 6
Installation Manual
NU-Series Hardware Introduction
Figure 4 Active room bus with dome light and active room modules
Legend:
(1) Gateway II
(2) Power from Gateway II to hallway devices and room modules
(3) Hallway bus
(4) Dome Light (NUDL4/NUDL2)
(5) Active room bus
Each NUDL dome light supports two room buses. The maximum number of modules that
can be connected to the room bus can vary based the on total power consumption of the
connected modules and the length of the bus cable. However, the software limits this to a
total of sixteen modules.
1.4.4 Addressing Active Room Bus Modules
Like the hallway bus devices, active modules on a room bus can be addressed using either
DIP switches or the Software Configuration Tool for serial number-based addressing.
However, you must follow the same addressing method as used to address the hallway
bus devices. The address range for active room bus modules is 0-7.

P/N PM000223A • Rev. 1 • ISS 9 August 2017 7
Installation Manual
NU-Series Hardware Introduction
1.4.5 Passive Room Bus
The Passive Bus Concentrator (NUPBC) resides on the hallway bus and controls the passive
room bus and is the interface between the Gateway II and the passive modules. The
NUPBC distributes power and communication to the attached modules through its eight
passive room buses. The following figure shows a system setup with an NUPBC.
Figure 5 Passive room bus with a NUPBC and passive room modules
Legend:
(1) Gateway II
(2) Power from Gateway II to hallway devices and room modules (36VDC)
(3) Hallway bus
(4) NUPBC Passive Bus Concentrator
(5) Passive room bus
Note: The Telligence system is an electrically supervised system, except for the
passive devices connected to the passive room buses.
Each NUPBC includes eight passive bus terminals, two RJ-45 receptacles for connecting to
the hallway bus network, six DIP switches for setting its hallway bus address, and a blue
status LED. The LED illuminates when power is applied to the concentrator and flashes
when the NUPBC is in fault.
1.4.6 IP Bus
The IP bus is controlled by a Power over Ethernet (PoE) switch. The IP devices, including the
Touch Screen Display (NGTDSP and NGWDSP), the Corridor Display (NUCD12IP), Telligence
Bridge computer, and Innovaphone VoIP Gatway are PoE-capable, reside on the IP bus,
and are powered by the PoE switch. The Telligence Bridge computer is powered separately.

P/N PM000223A • Rev. 1 • ISS 9 August 2017 8
Installation Manual
Ascom Call system System Cabling
2 System Cabling
High quality cables must be used when installing the system. All cables shall comply with
the specification TIA/IEA 568-A/B Cat 5/5e/6/7. This is a standard 4x unshielded twisted
pair (U/UTP) solid bare copper with a diameter of 0.5mm (AWG 24). Take care when
stripping cables from the outer jacket to avoid damaging the insulation of the wire cores.
The system wiring is classified as Class 2 Safety Extra Low Voltage (SELV); therefore,
cabling shall be separated from higher voltage systems through the use of separate
conduits or divided cable trays.
Sufficient free cable length shall be available during the installation of the dome lights,
lights, Passive Bus Concentrators (NUPBC), and Gateway II. Active and passive modules
shall have sufficient free cable left at the location of each module. A minimum length of
15cm (6 in.) is recommended.
The hallway bus, the Ethernet backbone, and the active room bus use RJ-45 connectors.
All cables shall be clearly marked at both ends. The passive bus uses detachable spring
case connectors instead of RJ-45 connectors.
2.1 System Overview
Figure 6 System overview
Legend:
(1) Ethernet system backbone
(2) Power, data, voice
(3) Hallway bus power
(4) Hallway bus data
(5) Passive room bus
(6) Active room bus

P/N PM000223A • Rev. 1 • ISS 9 August 2017 9
Installation Manual
NU-Series Hardware System Cabling
Warning: The system manager, corridor display, and administration PC do not comply with
the ANSI/UL 1069 standard for Hospital Signaling and Nurse Call equipment and are not
considered to be part of a listed system configuration.
2.2 Cable Connections
2.2.1 Cable Guidelines
Installers must be fully knowledgeable of the electrical code requirements for their
jurisdiction. All cables and wires used in this application must be fully compliant with
jurisdiction codes. Be sure to use the correct cables in non-plenum ceilings and inside,
behind or through walls, cable trays, wire channels and raceways, or environments where
open building wire is sanctioned. Also, be sure to use plenum-rated cable in air handling
plenum areas.
Label all cable and wire terminations at each cable end for easy identification when
connecting to system devices. We recommended that you use two different colors of
Cat 5/5e/6/7 cable, one for hallway networks and another for room networks.
2.2.2 Hallway Network Power Cable
The hallway network power cable is a wire pair that runs power from the Gateway II to the
hallway devices, which contains dome lights and NUPBCs. The Gateway II provides 36VDC
power for the hallway bus. See Table 1 to determine the maximum allowable distance
between the Gateway II and the farthest dome light in the system for various wire gauges.
Table 1 Maximum distances for hallway bus cables
2.2.3 Room Bus Cables
The modules on the room bus are connected using Cat5/5e/6/7 cables.
Table 2 Maximum distances for room bus cables
EU (mm2) AWG Maximum Distance
1,31 16 (26/30) 300m (1000ft.)
0,823 18 (16/30) 190m (620ft.)
0,518 20 (10/30) 120m (390ft.)
0,205 24 (7/32) 50m (172ft.)
Room Bus Type Maximum Cable Length
Active 30m (100ft.)
Passive (5.5VDC) 50m (165ft.)
Passive (24VDC) 300m (1000ft.)

P/N PM000223A • Rev. 1 • ISS 9 August 2017 10
Installation Manual
NU-Series Hardware System Cabling
2.2.4 Pulling Cable and Wire
After all conduit has been installed and secured to the electrical boxes, pull the cables and
wires through the conduit in accordance with the installation drawings. Make sure to pull
15cm (6in.) of free cable from the backbox at every location where the modules are to be
installed.
Use caution not to strain the connectors. If the cables are too stiff to fit in the backbox,
remove up to 15cm (6in.) of cable jacketing before connecting the cable to the module, as
shown below.
2.2.5 Labeling Cable and Wire
Label cable and wire terminations so that they can be identified easily when connecting to
system devices. Typically, each dome light will have several Cat 5/5e/6/7 cables. Refer to
the relevant module description in the following sections for details of the electrical
connections. Be sure to pay attention to the colors that differentiate the hallway and room
bus cables.
2.3 Preparing the Room Bus Cables
It is important to prepare the cables appropriately and to guide the wires inside a module’s
housing in order to avoid the wires pressing on the printed circuit board, which could
result in damage and also prevent the top section from closing properly.
2.4 Terminating Cables
2.4.1 Terminating Cat 5/5e/6/7 Connectors
Use a Cat 5/5e/6/7 U/UTP cable when connecting modules to the room bus. Handle
Cat 5/5e/6/7 cables with care. Do not splice, sharply bend, strip leads, or untwist wire that
terminate at RJ-45 connectors. Any of these actions can degrade or ruin the system’s
network operation.
Cat 5/5e/6/7 cables used in the system terminate with an RJ-45 connectors to the T568B
or EIA 568B straight-through connection standard as shown in the following table.

P/N PM000223A • Rev. 1 • ISS 9 August 2017 11
Installation Manual
NU-Series Hardware System Cabling
Table 3 RJ-45 Pin-out (termination is identical on both ends)
Figure 7 Terminating a Cat 5/5e/6/7 cable
To terminate a Cat 5/5e/6/7 cable:
1. Using a crimping tool, trim the end of the cable that you are terminating to ensure that
the ends of the conducting wires are even.
2. Carefully strip off approximately one inch of the cable's jacket using the crimping tool
or a UTP cable stripper.
3. Separate the four twisted wire pairs from each other, and then unwind each pair so
that you end up with eight individual wires.
4. Arrange the wires in a flat, side-by-side ribbon formation, and then place them in order
according to Table 3.
5. Orient the RJ-45 connector so that its pins are facing away from you and the plug-clip
side is facing down. See Figure 7. Carefully insert the flattened wires into the
connector. If using an EZ-RJ45 connector, push through until the wire ends emerge
from the pins. For strength of connection, also push as much of the cable jacket as
possible into the connector.
6. When you are using an EZ-RJ45 crimping tool, the tool will remove the excess wire
when you crimp the connector.
7. Make sure that the wires are in the correct order. If not, remove them from the
connector and rearrange them into the proper formation and re-insert.
8. Insert the connector/cable assembly into the RJ-45 slot in your crimping tool. Firmly
squeeze the crimper's handles together until you can't go any further. Release the
handles and repeat this step to ensure a proper crimp.
9. If your crimper does not automatically trim the wire ends upon termination, carefully
cut wire ends to make them as flush with the connector's surface as possible. The
closer the wire ends are trimmed, the better your final plug connection will be.
Pin # Color Color Abbreviation
1 Orange/White OGWH
2Orange OG
3Green/WhiteGNWH
4Blue BU
5 Blue/White BUWH
6Green GN
7 Brown/White BNWH
8Brown BN

P/N PM000223A • Rev. 1 • ISS 9 August 2017 12
Installation Manual
NU-Series Hardware System Cabling
10.After the first termination is complete, repeat the process on the opposite end of your
cable, ensuring the wires are in the identical positions.
11.Test the cable to ensure that all the connections are correct.
2.4.2 Terminating Block Connectors
Block connectors, also known as Euroblock or Phoenix connectors, have terminals with
two connection points at each terminal. Each connection point accepts one solid wire with
a maximum wire size of 0.518 mm² (20 AWG).
Connectors are required for the room bus, passive bed light switching relays, and other
connections. Each connector has a screwless, spring-cage connection technique and each
terminal has two connection points. The Ascom Telligence System uses 4-, 6-, and 8-pole
block connectors.
Figure 8 4-pole, 6-pole, and 8-pole block connector terminals
Note: Block connectors are not supplied with modules but are available as
accessories and must be ordered separately.
To prepare the wires for a block connector:
1. Strip the jacket from the cables.
2. Pull the wires through the module’s housing leaving a length of 15cm (6.0in.) free.
3. Strip 0.64cm (0.25in.) of the insulation from the end of each wire to be connected.
To attach a wire to a block connector:
1. After stripping the wire to expose 6.5mm (0.25in.) of conductor, insert the wire in the
appropriate opening of the connection point by pressing the wire firmly into the
terminal, as shown below.