RS485/RS422 WWW.INFOPULSAS.LT / Expansion port

RS485/RS422 WWW.INFOPULSAS.LT / Expansion port
WWW.INFOPULSAS.LT / [email protected]
OBSAH
Expansion port
USER’S GUIDE
RS485/RS422
USED SYMBOLS
Used symbols
Danger – important notice, which may have an influence on the user’s safety or the function
of the device.
Attention – notice on possible problems, which can arise in specific cases.
Information, notice – information, which contains useful advice or special interest.
GPL licence
Source codes under GPL licence are available free of charge by sending an email
to [email protected]
Declared quality system
ISO 9001
Conel s.r.o., Sokolska 71, 562 04 Usti nad Orlici, Czech Republic
Issue in CZ, 12/15/2011
ii
CONTENTS
Contents
1.
2.
3.
4.
5.
Safety instructions ...............................................................................................................1
Product disposal instructions...............................................................................................2
Expansion port RS485/RS422 description ..........................................................................3
Interface and power supply selection ..................................................................................4
Connection of connector......................................................................................................5
5.1.
Connection of RS485 connector..................................................................................5
5.2.
Connection of RS422 connector..................................................................................6
6. State indication of RS485/RS422 port.................................................................................7
7. Delivery Identification ..........................................................................................................8
8. Technical specification ........................................................................................................8
9. Recommended literature .....................................................................................................8
10.
Customers support ..........................................................................................................9
iii
IMAGE LIST
Image list
Fig. 1: The jumper circuitry for internal supply ............................................................................4
Fig. 2: The jumper circuitry for external supply ...........................................................................4
Fig. 3 The jumper circuitry for RS485..........................................................................................4
Fig. 4 The jumper circuitry for RS422..........................................................................................4
Fig. 5: RS485 connector..............................................................................................................5
Fig. 6: Equipment with a router with data cable length less than 10 m .......................................5
Fig. 7: Equipment with a router with data cable length more than 10 m .....................................6
Fig. 8: RS422 connector..............................................................................................................6
Fig. 9: Equipment with a router with data cable length less than 10 m .......................................7
Fig. 10: Equipment with a router with data cable length more than 10 m ...................................7
Fig. 11: Port RS485/422 label .....................................................................................................8
iv
TABLE LIST
Table list
Table 1: Connection of RS485 connector ...................................................................................5
Table 2: Connection of RS422 connector ...................................................................................6
Table 3: State indication..............................................................................................................7
Table 4: Delivery identification ....................................................................................................8
Table 5: Technical specification ..................................................................................................8
v
SAFETY INSTRUCTION
1. Safety instructions
Please observe the following safety instructions:
•
The expansion port must be used in compliance with all applicable international
and national laws and in compliance with any special restrictions regulating
the utilization of the communication module in prescribed applications
and environments.
•
Use only the original Conel company accessories. Thus you will prevent possible
health risks and damage to the devices and ensure compliance with all relevant
provisions. Unauthorised adjustments or use of unapproved accessories may result
in damage to the expansion port and breach of applicable laws. Use of unapproved
adjustments or accessories may lead to cancellation of guarantee, which has no
effects on your legal rights.
•
Do not expose the expansion port to extreme conditions. Protect it from dust,
moisture and heat.
1
SAFETY INSTRUCTIONS
2. Product disposal instructions
The WEEE (Waste Electrical and Electronic Equipment: 2002/96/EC) directive has
been introduced to ensure that electrical/electronic products are recycled using the best
available recovery techniques to minimize the impact on the environment. This product
contains high quality materials and components which can be recycled. At the end of it’s life
this product MUST NOT be mixed with other commercial waste for disposal. Check
with the terms and conditions of your supplier for disposal information.
2
EXPANSION PORT DESCRIPTION
3. Expansion port RS485/RS422 description
The expansion port RS485/RS422 is created as expansion board which enables
to use of the next hardware interface of Conel modems or routers for next signal processing.
This interface is physical connected on RJ45 connector on appropriate modem or routers.
The Expansion port RS485/RS422 can be selected via jumpers interface RS422
or RS485. Power port can also be selected using jumpers on the board expansion port.
Description of the interface and an external or internal power supply selecting, see chapter
interface and power supply selection.
Expansion port RS485/RS422 is possible fitted into PORT1 and PORT2.
3
EXPANSION PORT DESCRIPTION
4. Interface and power supply selection
External or internal power supply of module Expansion port RS485/RS422 can
be made by wiring jumpers J2 and J3 on this module. If internal power supply of the module
is required, jumpers J2 and J3 must be connected to pins 2 - 3. External power supply is
made by connecting pins 1 - 2 with jumpers J2 and J3.
Interface behaviour of module Expansion port RS485/RS422 can be made by wiring
jumpers J4, J5 and J6 on this module. If RS485 is required, jumpers J4 and J5 must be
connected and jumper J6 disconnected. If RS422 is required, jumpers J4 and J5 must be
disconnected and jumper J6 connected.
Jumper placement can be seen in the picture below (module Expansion port
RS485/RS422 from TOP layer). We recommend that internal power supply is only chosen
in the event that it is not possible to ensure external power supply. If internal power supply is
chosen, converter RS485/RS422 is not galvanic separated.
Jumper J3
Jumper J3
Jumper J2
Fig. 1: The jumper circuitry for external supply
Fig. 2: The jumper circuitry for internal supply
Fig. 3 The jumper circuitry for RS485
Fig. 4 The jumper circuitry for RS422
Jumpery J4 a J5
4
Jumper J2
Jumper J6
EXPANSION PORT DESCRIPTION
5. Connection of connector
5.1. Connection of RS485 connector
Panel socket RJ45.
Pin
number
1
2
3
4
5
6
7
8
Signal
mark
GND
GND
TxRxTxRx+
TxRxTxRx+
+12 V EXT
+12 V EXT
Description
Signal and supply ground
Signal and supply ground
RS485 B (-)
RS485 A (+)
RS485 B (-)
RS485 A (+)
External power supply
External power supply
Data flow direction
Input/Output
Input/Output
Input/Output
Input/Output
Table 1: Connection of RS485 connector
Fig. 5: RS485 connector
ATTENTION! Power supply is selected on the expansion port RS485 by help
of a jumper,
The signals 3-5 a 4-6 are linked inside of the router.
If galvanic separation is required the converter must have an external power supply.
Circuit example of the equipment with a router with data cable length less than 10 m:
Fig. 6: Equipment with a router with data cable length less than 10 m
5
EXPANSION PORT DESCRIPTION
Circuit example of the equipment with a router with data cable length more than 10 m:
Fig. 7: Equipment with a router with data cable length more than 10 m
With a RS485 data cable more than 10m it is necessary to use overvoltage protection
on the router side!
5.2.
Connection of RS422 connector
Panel socket RJ45.
Pin
number
1
2
3
4
5
6
7
8
Signal
mark
SGND
SGND
RxDRxD+
TxDTxD+
+12V EXT
+12V EXT
Description
Signal and power supply ground
Signal and power supply ground
Receive Data (-)
Receive Data (+)
Transmit Data (-)
Transmit Data (+)
External power supply
External power supply
Data flow direction
Output
Output
Input
Input
Table 2: Connection of RS422 connector
Fig. 8: RS422 connector
ATTENTION! Power supply is selected on the expansion port RS422 by help
of a jumper,
If galvanic separation is required the converter must have an external power supply.
6
EXPANSION PORT DESCRIPTION
Circuit example of the equipment with router with data cable length less than 10 m:
Fig. 9: Equipment with a router with data cable length less than 10 m
Circuit example of the equipment with a router with data cable length more than 10 m:
Fig. 10: Equipment with a router with data cable length more than 10 m
With a RS422 data cable more than 10m it is necessary to use overvoltage protection
on the router side!
6. State indication of RS485/RS422 port
LED port indicator
Green LED
Yellow LED
Indicates Receive data
Indicates Transmit data
Table 3: State indication
Status indication is supported from 4th revision of boards.
7
EXPANSION PORT DESCRIPTION
7. Delivery Identification
Trade name
XC-RS485/422
Type name
XC-485-422
Power supply
Internal or external supply
Table 4: Delivery identification
Example of expansion port label:
Fig. 11: Port RS485/422 label
8. Technical specification
Expansion port RS485-RS422
Power supply
External
Internal
Supply power
Supply current
Environment
Operating temperature
Storage temperature
Standards
Emission
Immunity
Safety
RS485 specifications
Max. devices (each 1,5 mA)
(EN 1434)
Max. bit rate
Short circuit strength
Max. total cable length
(300Bd, 200nF/km)
RS485
RS422
+10 .. +30 V
+3,3V
Max. 1 W
Max. 4 mA
-30 .. +60 °C
-30 .. +85 °C
EN 55022/B
ETS 300 342
EN 60950
256
38400 bps
Permanent
1200 m
Table 5: Technical specification
9. Recommended literature
[1] Conel: Application guide – Expansion port mounting.
8
OMERS SUPPORT
CUSTOMERS
10. Customers support
Up to date information about the product is on website:
http://www.conel.cz/
Upkeep-advices:
During cleaning of the router do not use aggressive chemicals, solvents and abrasive cleaners!
Conel Company hereby declares that the router narrated in this user’s guide fits all basic
demands of directive 1999/5/EC (R&TTE).
Router fits values of coefficient SAR defined by association ICNIRP and values
of “About protection of health before non-ionized radiation“.
Declaration about consistency was issued and is possible get it in accompanying CD
or at producer.
9
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