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INSTALLATION MANUAL
FLUSH-MOUNT MASTER STATION
Thank you for purchasing TOA's Flush-Mount Master Station.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
N-8033MS
1. GENERAL DESCRIPTION
The N-8033MS is a flush-mount master station designed to operate in conjunction with TOA IP Intercom Exchange and
features high quality hands-free conversation.
Using an optional YC-841 Wall-mount box, this station can be mounted on a wall.
Connecting a foot switch or other external switch to the external dial input terminal permits one-touch dialing operation by
way of such switches.
2. MAINTENANCE PRECAUTIONS
The front protective sheet is a wear-and-tear item. It is highly recommended to replace it every 100,000 times of
operations (approx. 3 years) for any key.
Part code: 115-51-304-00
For replacement, please contact your nearest TOA dealer.
3. WALL MOUNTING
3.1. In-Wall Mounting Using an electrical box
Attach the N-8033MS to the YC-841 Wall-mount box or an electrical box installed in a wall.
Machine screw M4 x 35
(accessory)
Seal the panel edges.
coustic material (accessory)
A
Note
Lay it down along the inside of the box.
N-8033MS
After installing the N-8033MS,
check if conversations can be
made, then adhere both ends
of adhesive sheet to the panel
by removing exfoliate paper.
Wall surface
YC-841 or electrical box
Tip
Refer to the next
page for YC-841
dimensional
drawing.
Note
Remove either of the 2 knockout
holes in the bottom so that it can
work as a weep hole (to allow
water to exit), and secure the
YC-841 to a wall.
YC-841 bottom
Note
When installing the N-8033MS outdoors or at locations where it gets wet with water, tightly
seal the panel edges. For sealing method, consult your TOA dealer.
Knockout holes
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3.2. On-Wall Mounting Using a Wall-Mount box
Attach the N-8033MS to the YC-841 Wall-Mount Box installed on a wall.
Acoustic material (accessory)
Note
Lay it down along the inside of the box.
N-8033MS
Machine screw M4 x 35
(accessory)
After installing the N-8033MS,
check if conversations can be
made, then adhere both ends
of adhesive sheet to the panel
by removing exfoliate paper.
Seal all the panel and rear edges.
Wall surface
YC-841
Tip
Refer to the YC-841
dimensional drawing as
mentioned below.
Note
When running the cable through
the knockout hole in the YC-841's
bottom, attach a cord bush of
waterproof type. For the cord bush,
consult your TOA dealer.
YC-841 bottom
Knockout holes
Note
Seal the edges of the panel and those of the box’s rear surface in contact with the wall surface
when installing the unit outdoors or at locations where it gets wet with water.
For sealing method, consult your TOA dealer.
Wall surface
YC-841
[Installation completion drawing]
Unit: mm
254
2369
[YC-841 dimensional drawing]
70
60
28.3
236
180
83.5
57
81
119
40
Unit: mm
6-φ5 Knockout hole
φ12.7 Knockout hole
220
258
φ20.9 Knockout hole
4-M4
70
115
φ12.7 Knockout hole
19
φ20.9 Knockout hole
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4. WIRING
4.3. Connection to External Switch
4.1. Connection to the Exchange
N-8000EX/8010EX Exchange
16 lines
Mini-clamp connector *
(Supplied with the
N-8000EX/8010EX)
E-7000TB
Terminal board
Twisted pair cable
Both upper and lower
terminals (clip terminals)
are internally connected.
External switches such as footswitches can be connected
to the N-8033MS's external dial input terminals.
Terning on each switch connected to the terminal [7], [8],
[9], or [C] permits the same operation as performed by
pressing the dial [7], [8], [9], or [C].
An electrical current of 1 mA flows through each contact.
Note
The cable length from the external switch should not
exceed 3 m.
7
8
9
C
COM
External dial input terminals
7
8
9
C
COM
N-8033MS rear
[Connections]
8 mm
Press down.
2 1
1 2
N-8033MS rear
Removable terminal plug (2P)
(accessory)
Line connection terminals
To connect the cables from the N-8000EX/8010EX
Exchange to the N-8033MS, use the removable terminal
plug (2P) supplied with the N-8033MS.
The cables have no polarity.
* There are two types of Mini-clamp connectors, either of
which is supplied with the N-8000EX/N-8010EX.
For details, refer to the next page.
4.2. Relations Between Core Diameter of Cable
and Maximum Cable Length
Refer to the following chart as guidelines when designing
the distance between the Exchange and stations so that
loopresistancevaluebecomes170Ωorless.
Conductor Loop Maximum cable length
diameter resistance between the Exchange and station.
(mm) (Ω/ km)
ø0.4 295 570 m
ø0.5 187 900 m
ø0.65 113 1.5 km
ø0.9 58 2.9 km
(Assuming that the loop resistance is 170
Ω
.)
Cable
External dial input
terminal block
4.4. The Type of Cables
The types of cables are to be determined according to the
following conditions.
• Twistedpair wires (suchasthoseusedfor electronic
push-button telephone) are to be used for wiring
between the Exchange and the stations in principle.
• The number of cables pairs laidshould be determined
considering the possibility of future expansion of the
system.
• Outdoorwiresshouldbeusedwherewiringpasses
through inaccessible areas such as ceilings or under
floors where the maintenance is not performed. Indoor
wires may also be used, however, in case where there is
no risk of deterioration due to exposure to heat, etc.
Note
Specifications related to each junction are as follows.
Mini-clamp connector (N-8000EX/8010EX line terminal)
Conductor diameter: ø 0.4 – 0.65 mm (AWG22 – 26),
Solid wire
Outside diameter: ø 1.05 mm or below
Clip terminal (E-7000TB)
Conductor diameter: ø 0.4 – 0.8 mm (AWG20 – 26),
Solid wire
Outside diameter: ø 1.5 mm or below
Removable terminal plug (N-8033MS line terminal)
Conductor diameter: ø 0.4 – 1.6 mm (AWG14 – 26),
Solid wire/Stranded wire
External dial input terminal (N-8033MS)
Conductor diameter: ø 0.8 – 1.3 mm (AWG16 – 20),
Solid wire/Stranded wire
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4.5. Terminal Station Connection
Cover (Transparent)
The N-8000EX/8010EX comes with a mini-clamp
connector of Type A or Type B as shown below.
Both types of connectors differ in their shapes and
connection methods.
[Shape of connectors (Side views)]
Type A Type B
Step 2. Insert the wired connector (plug) into the
exchange's connector (socket) until it locks into
place.
N-8000EX/8010EX Rear panel
[Cable connection procedures]
Step 1. Connect the cables to the mini-clamp connector.
1-1. Cut off two-cable ends in equal length, and insert
them securely to a cover section of the miniclamp connector.
Note
Insert the cable without stripping the cable jacket.
(Type A connector) (Type B connector)
Cable
1-2. With pliers, lightly pinch the mini-clamp cover,
and after ensuring that the cable is securely
inserted, firmly squeeze on the cover.
Note
Squeeze on the mini-clamp cover until it is
correctly locked.
4.6. Terminal Plug Connection
Step 1. Strip a cable jacket of approx. 5 mm from the
cable end.
5 mm
Note
Do not solder plate on exposed inner cables
when using a stranded wire.
Step 2. Loosen the terminal screws and insert the cables.
Step 3. Tighten the terminal screws securely.
Notes
• Tuglightlyonthecabletobesure that it does
not pull free. If the cable pulls free, loosen the
terminal screw again and reconnect from Step
2.
• Toavoidstrippingthescrews,usethe
screwdriver appropriate to the screws tightened
into the terminal plug.
Step 4. Insert the wired terminal plug into the pin header
on the N-8033MS's PC board.
1-3. Cut off the cable sticking out of the connector
Warning
This is a class A product. In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.
case with nippers. (Type B connector only.)
Raise the cable sticking out as shown below, then
cut it off so that it comes out as less as possible
from the connector case.
Traceability Information for Europe (EMC directive 2004/108/EC)
Manufacturer:
TOA Corporation
7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo, Japan
3
Tighten
Removable terminal plug
Cable
2
Pin header
N-8033MS's
PC board
Authorized representative:
TOA Electronics Europe GmbH
Suederstrasse 282, 20537 Hamburg, Germany
(accessory)
4
1 2
URL: http://www.toa.jp/
133-41-080-6A
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