Pfeiffer Vacuum OHA 200 User manual

Operating Instructions
Incl. Declaration of Conformity
BG 805 055 BE (0208) 1
Optical Hub
OHA 200

2BG 805 055 BE (0208) OHA200.oi
In all communications with Pfeiffer Vacuum, please
specify the information on the product nameplate. For
convenient reference copy that information into the
space below.
Typ:
No:
F-No:
V Hz VA
Pfeiffer Vacuum, D-35614 Asslar
This document applies to products with part number
PT442510-T ( 5 ports)
PT442520-T (10 ports)
The part number (No) can be taken from the product
nameplate.
If not indicated otherwise in the legends, the illustrations
in this document correspond to the OHA 200 with
5 ports.
We reserve the right to make technical changes without
prior notice.
The OHA 200 is an autonomous Optical Hub for con-
figuration of an ARCNET Local area network (LAN).
Although it has primarily been constructed for the
QMS 200 product family, it is also suitable for QMG 422
networks.
In addition, several OHA 200 can be connected in tan-
dem by fiber optic cables. LAN networks with up to 255
stations (nodes) can be constructed.
ARCNET® Arcnet Trade Association
Product Identification
Validity
Intended Use
Trademarks

BG 805 055 BE (0208) OHA200.oi 3
Contents
Product Identification 2
Validity 2
Intended Use 2
Trademarks 2
1 Safety 4
1.1 Symbols Used 4
1.2 Personnel Qualifications 5
1.3 General Safety Instructions 5
1.4 Liability and Warranty 5
2 Technical Data 6
3 System Overview ARCNET LAN 8
4 Installation 9
4.1 Configuration 9
4.2 Settings 10
4.3 Placing the Unit 12
4.4 Connecting the Optical Waveguides 12
4.5 Connecting the Power Cable 13
5 Operation 14
5.1 Network 14
6 Maintenance 16
7 Troubleshooting 17
8 Repair 18
9 Accessories 19
10 Storage 19
11 Disposal 20
Appendix 21
A: Mounting the Wall Brackets 21
B: Literature 21
Declaration of Conformity 22
For cross-references within this document, the symbol
(→XY) is used, for cross-references to further docu-
ments, listed under "Literature", the symbol (→[Z]).

4BG 805 055 BE (0208) OHA200.oi
1 Safety
DANGER
Information on preventing any kind of physical injury.
WARNING
Information on preventing extensive equipment and
environmental damage.
Caution
Information on correct handling or use. Disregard can
lead to malfunctions or minor equipment damage.
The result is O.K.
Result not as expected.
… please contact your local Pfeiffer Vacuum
service center.
The lamp/display is lit.
The lamp/display flashes.
The lamp/display flickers.
The lamp/display is dark
1.1 Symbols Used
Symbols for residual
risks
Further symbols

BG 805 055 BE (0208) OHA200.oi 5
Skilled personnel
All work described in this document may only be
carried out by persons who have suitable technical
training and the necessary experience or who have
been instructed by the end-user of the product.
Adhere to the applicable regulations and take the
necessary precautions for the process media used.
Communicate the safety instructions to all other users.
Pfeiffer Vacuum accepts no responsibility nor warranty if
the user or third parties
• disregard the information in this document
• use the product in a non-conforming manner
• make any kind of changes (modifications, alterations,
etc.) to the product
• use the product with accessories not listed in the
product documentation.
1.2 Personnel
Qualifications
1.3 General Safety
Instructions
1.4 Liability and
Warranty

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2 Technical Data
Voltage
Frequency
Power consumption
Overvoltage category
Protection class
Fuses F1, F2
Connection
85 Veff … 264 Veff
47 Hz … 63 Hz
6 W
ll (according to EN 01010)
I
500 mA slow
European appliance
connector IEC 320 C14
Temperature
Operation
Storage
Relative humidity
Use
Protection category
Pollution degree
−25 … +70 °C
+5 … +40 °C
≤80% up to 31 °C, linearly
decreasing to 50% at 40 °C
indoors only
altitude ≤2000 m
IP 40
2
Connector type
Length of optical waves
Data rate
Length of optical wave-
guides
Transfer distance
JIS F07 / TOSLINK
800 nm
≤2.5 Mbit/s
0 … 1000 m
3000 m (tandem)
→22
Power connection
Ambiance
Optical interface
X1 … 5 (X10)
Fulfilled standards

BG 805 055 BE (0208) OHA200.oi 7
670 g (1.5 lbs) 730 g (1.6 lbs)
Dimensions
Weight

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3 System Overview ARCNET LAN
Central hub Expansion hub
8 91
*) Factory setting
In extensive ARCNET networks, delay of data signals
due to cable delays and cycle times of hubs plays a role.
Since the deterministic ARCNET protocol contains
timeout tests, the maximum delay between two time-
sharing devices must not exceed the defined values.
… If you have any questions regarding extensive
ARCNET networks, please contact your local
Pfeiffer Vacuum representative.
max = 750m *)
max = 750m *) max = 750m *)
PC & OPA 200 network
controller board →[1]

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4 Installation
Skilled personnel
The unit may only be installed by persons
who have suitable technical training and the
necessary experience or who have been
instructed by the end-user of the product.
Make the following settings:
• Function as central or expansion hub
Factory setting:
Central hub
• Lengths of the optical waveguides
Factory setting:
medium = 0 … 750 m glass fiber cables (PCF)
(connector type TOCP 201)
= 0 … 2.2 m plastic fiber cables (APF)
(connector type TOCP 255)
4.1 Configuration

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1
2
Expansion hub
Central hub *)
Expansion hub
*) Factory
setting
S1
S2
S3 S4
S5
S11
4.2 Settings
Detach the cover of the
housing
Set the function of the
unit

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short
medium *)
long
*) Factory
setting
S1
S2
S3 S4
S5
S11
Glass fiber (PCF)
(connector type
TOCP 201)
Plastic fiber (APF)
(connector type
TOCP 255)
short
medium
long
= 0 … 500 m
= 0 … 750 m
= 0 … 1000 m
= 0 … 1.4 m
= 0 … 2.2 m
= 0 … 3.0 m
1
2
Set length of fiber optic
cable
Mount the cover of the
housing

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Place the unit on a dry and clean surface. The floor is
not suitable (→21).
Do not place any units on top of each other as
they generate heat.
OPA 200 network
controller board Central hub Expansion hub
rmin=15mm
Cover the ports that are not used with blank
plugs to prevent stray light from entering.
4.3 Placing the Unit
4.4 Connecting the
Optical
Waveguides

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DANGER
Caution: line voltage
Incorrectly grounded products can be extre-
mely hazardous in the event of a fault.
Use only a 3-conductor power cable with pro-
tective ground. The power connector may
only be plugged into a socket with a protec-
tive ground. The protection must not be nulli-
fied by an extension cable without protective
ground.
4.5 Connecting the
Power Cable

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5 Operation
The product is ready for operation as soon as it has
been installed.
The network is ready for operation as soon as all sta-
tions are active and work properly.
The lamps on the back side of the OPA 200 network
controller board allow the diagnosis (→[1]).
Status Description
Data transfer between PC and network control-
ler board.
The network controller board is not addressed
due to a mismatch of the configuration with the
PC setup or the software driver.
5.1 Network
Red Lamp

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Status Description
Network operating (optical connections o.k.
and partner nodes in operation).
Data transfer on the network.
Network tries to reconfigure. Possible reasons
for trouble:
• optical connections interrupted or defective
• Wrong distance setting (maybe at partner
nodes)
• Stray light on open nod receiver
PC is switched off, controller board not properly
installed or defective.
Green Lamp

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6 Maintenance
The product requires no maintenance.
Disconnect the product from the mains.
A slightly damp cloth normally suffices for cleaning the
outside of the unit. Do not use any aggressive or scou-
ring cleaning agents.
Cover all ports
with blank plugs.
Make sure that no liquid can penetrate the pro-
duct. Allow the product to dry thoroughly before
putting it into operation again.
Blow the ports with clean, dry air at a low
pressure.
Wipe the connectors of the optical waveguides
with a cloth moist with alcohol.
Cleaning the housing
Cleaning the optical
connections

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7 Troubleshooting
Symptom Possible cause Correction
Power supply control lamp Mains supply out of
order
Check mains supply
Fuses defective Replace the fuses
DANGER
Caution: line voltage
Touching live parts is hazardous.
Disconnect the product from the mains.
nDetach the cover of the housing (→10).
oRemove the cover of the fuse compartment and
replace the fuse(s).
Fuses
500 mA slow, 250 V
ø5×20
pReinstall the cover of the fuse compartment.
qMount the cover of the housing (→11).
Replacing the fuses

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Symptom Possible cause Correction
The connection cannot be
established
Remote station not
started up
Check whether network
stations function correctly
Wrong configuration of
optical waveguide
lengths in OHA 200
Try the other two positions of
the switches (→11)
Other connection
problems
→[1], [2]
Other problems
… please contact your local Pfeiffer Vacuum
service center.
8 Repair
We recommend returning the product to your local
Pfeiffer Vacuum service center for repair.
Pfeiffer Vacuum assumes no liability and the warranty
becomes null and void if any repair work is carried out by
the end-user or third parties.

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9 Accessories
Length Materials Ordering number
10 m
20 m
50 m
1 m
3 m
other lengths
PCF
PCF
PCF
APF
APF
B5159615 2H
B5159615 2K
B5159615 2Q
B5159615 2C
B5159615 2D
on request
Ordering number
Network controller board OPA 200 B5278503 KT
10 Storage
Caution
Caution: electronic component
Inappropriate storage (static electricity, hu-
midity etc.) can damage electronic compo-
nents.
Store product in antistatic bag or container.
Observe the corresponding specifications in
the Technical Data (→6).

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11 Disposal
N
WARNING
Caution: substances detrimental to the
environment
Products or parts thereof (mechanical and
electric components, operating fluids etc.)
can be detrimental to the environment.
Dispose of such substances in accordance
with the relevant local regulations.
After disassembling the product, separate its compo-
nents according to the following criteria:
Such components must be separated according to their
materials and recycled.
Such components must be separated according to their
materials and recycled.
Separating the
components
Non-electronic
components
Electronic
components