Model 232PE Document 232PE3095 This product Designed Ma
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Port Expander
Model 232PE
Document 232PE3095
This product
Designed Manufactured Ottawa, Illinois
domestic imported parts
Electronics Mfg. Inc.
Dayton Road P.O. 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Internet: http://www.bb-elec.com sales@bb-elec.com techsupt@bb.elec.com
1993 Electronics June 1993
232PE3095 Manual
Cover Page
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
TABLE CONTENTS
Chapter HARDWARE.1 Introduction Checklist Port Expansion Bus.2 Setting Address.2 Connecting Bus.4 Port Configuration RS-232 Configuration.5 RS-422/485 Option RS-422 Mode.7 RS-485 Mode.8 Specifications.10 Appendix Cable Charts Chart DB25 Connector Master Port Chart Connector Master Port Chart Modem DB25 Connector Master Port. Chart Device w/DB25 Connector Ports (DTE) Chart DB25 Connector Ports (DTE). Chart Connector Ports (DTE). Chart DB25 Connector Ports (DTE). Chart Connector Ports D(DTE). Chart RS-422/485 4-Wire Device Port Configured RS-422 /485 Port. Chart RS-422/485 2-Wire Device Port Configured RS-422 /485 Port.
232PE3095 Manual
Table Contents
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Table Contents
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Chapter HARDWARE Introduction
Port Expander (232PE) adds four asynchronous serial data ports Expandable Smart Switch (232XSS). fifteen Port Expanders connected single 232XSS Port Expansion Bus. Refer Figure This expands eight ports 232XSS maximum sixty-eight ports. RS-232 ports standard 232PE, RS-422/485 ports optional. RS-232 ports configured ports support signals RTS, CTS, DTR, Ports configured RS-422/485 support only signals There five indicator LED's front 232XSS. Four LED's represent ports through indicate selected port. fifth "Power indicator. Refer Figure There five connectors located back 232PE, twenty expansion connector, four DB-25P male connectors ports through "D", eleven inch expansion ribbon cable. Refer Figure order select port Port Expander, each expander assigned unique address. four position switch Port Expander used this address. address field part port selection control string that received master port Expandable Smart Switch. Refer Expandable Smart Switch manual more details regarding port selection. There delay through Port Expander data buffered. Figure Simplified Functional Diagram
This diagram illustrates only transmit data (TD) signal.
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Checklist
following equipment should shipping carton: Port Expander Instruction Manual items above damaged missing contact shipper immediately.
Port Expansion
number serial ports Expandable Smart Switch easily expanded maximum sixty-eight ports daisy chaining Port Expander units 232XSS's expansion bus. maximum fifteen Port Expander units added 232XSS. Each Port Expander unit (232PE) adds four additional serial ports. Port Expansion connects each port electronic switch control circuit 232XSS.
Setting Address
Port Expanders must assigned their unique address. Located inside 232PE four position switch (SW1) which sets unit's address. Refer Figure Select unused address from "15" using Table CAUTION: Always power down 232PE before removing cover. select address that used another Port Expander, data collisions occur data will lost!
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Figure Printed Circuit Board Outline
board optional RS-422/485 port.
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Table Address Switch Switch Address Invalid FACTORY DEFAULT
Connecting
Connecting Port Expander Expandable Smart Switch simple task. rear panel Port Expander expansion cable, refer Figure This cable simply plugs into expansion connector located back last unit connected Expandable Smart Switch bus.
Figure Connection Diagram
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Port Configuration
232PE four selectable ports labeled through "D". Refer Figure ports manufactured meet either RS-232 RS-422/485 electrical characteristics. RS-232 Configuration RS-232 ports will wired ports. Refer Table out, signal name, signal direction information. Also, refer Figure simplified schematic showing relationship between master port 232XSS RS-232 port 232PE. Refer Appendix cable charts.
Table RS-232 PORTS RS-232 Signal Direction Ports Signal Description through Transmit Data Output Receive Data Input Request Send Output Clear Send Input Data Ready Input Signal Ground Carrier Detect Input Data Term Ready Output Pins tied together inside 232PE share same input, refer Figure
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Figure Simplified RS-232 Schematic
RS-422/485 Option RS-232 transmit receive data signals master port 232XSS will converted balanced full-duplex RS422 half-duplex RS-485 signals with this option. Table RS-422/485 PORTS RS-422/485 Signal Direction Description Ports Transmit Data Output Transmit Data Output Signal Ground Receive Data Input Receive Data Input
Signal TD(A) TD(B) RD(A) RD(B)
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Figure Simplified RS-422/485 Schematic
When port this option, additional printed circuit board will mounted main board. Figure locate position. Refer Table out, signal name, signal direction information. Also, refer Figure simplified schematic showing relationship between master port port configured with RS-422/485 option. NOTE: This option only supports transmit receive data signals from master port. Refer Appendix cable charts. RS-422 Mode configure port RS-422 four-wire mode, five jumpers must set. Jumper must placed "SD" position. Both jumpers must placed four-wire "4W" position. Jumper must place "ON" position. Jumper should placed "ON" position. Refer Figure these jumper locations.
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
RS-422 Specification labels data lines with designators. Some RS-422 equipment uses designator. almost cases, line equivalent line line equivalent line. Figure P.C. Board Optional RS-422/485 Port
RS-485 Mode There methods that used control RS422/485 driver: handshake control (RTS) send data (SD) control. These methods jumper selectable (JP1 "SD" "RTS"). Handshake control requires that software handshake signal enable/disable RS-485 driver. handshake signal (pin used when master port configured port (pin used when master port configured port. control automatically enables RS-485 driver sensing leading edge first character transmitted from device connected master port. After last character transmitted send data timer circuit waits character time millisecond 9600 baud) before disabling RS-485 driver. There components main printed circuit board, resistor (R1) capacitor (C1), that part send data control circuit. These components factory selected 9600 baud, which allows send data control operate 9600 baud higher. With these components RS-485 driver will disabled approximately millisecond after last character 232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
been sent. change baud rate lower than 9600 baud, configure send data control match specific baud rate, change value specified Table Figure locate Note that these timing components used when handshake control method selected.
Table Component Values Send Data Timing Baud Rate 1200 2400 4800 9600 19.2K 38.4K 57.6K 115.2K Time (ms) 33.3 16.6 8.33 4.16 2.08 1.04 0.520 0.260 0.176 0.0868 Resistor Value (ohms) 330K 160K 820K 430K 200K 100K 8.2K Capacitor Value C1(microfarads)
ECHO jumper (JP3) selects RS-485 receiver controlled. ECHO which constantly enables receiver (RS-422, 4-wire mode) ECHO which allows receiver automatically enabled when RS-485 driver disabled (2-wire mode). When ECHO position 2wire mode, data being sent from RS-232 device connected master port will echoed back master port. configure port RS-485 two-wire mode, five jumpers must set. Jumper must placed either "SD" "RTS" position, depending control RS-485 driver. Both jumpers must placed two-wire "2W" position. Jumper must place "OFF" position. Jumper should placed "ON" position this port located either multi-drop line, otherwise should "OFF" position. Refer Figure these jumper locations.
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Specifications
Model: Size: Power: 232PE 6.3"d 2.7"h 120Vac 60hz
Figure Front View
Figure Rear View
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Appendix Cable Charts
232PE3095 Manual
Appendix
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
These charts indicate some common cable wiring based DCE/DTE configuration 232XSS Master Port. Refer Port Configuration section 232XSS manual information Master Port configurations. Chart DB25 Connector Master Port Master Port configured port. 232XSS Serial Port Signal Master Port (DCE) DB25 Connector Direction DB25 Connector <-6* <-8* Pins tied together inside 232XSS share same output.
Chart Connector Master Port Master port configured port. 232XSS Serial Port Signal Master Port (DCE) Connector Direction DB25 Connector <-8* <-6* Pins tied together inside 232XSS share same output.
Appendix
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Chart Modem DB25 Connector Master Port Master port configured port. Async Modem 232XSS Serial Port Signal Master Port (DTE) DB25 Connector Direction DB25 Connector <-20 Pins tied together inside 232XSS share same input. NOTE: When using chart above connecting device ports smart switch, refer Charts
Chart Device w/DB25 Connector Ports (DTE) Master port 232XSS configured port. Device 232PE Serial Port Signal Ports (DTE) DB25 Connector Direction DB25 Connector <-20 Pins tied together inside 232PE share same input.
232PE3095 Manual
Appendix
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Chart DB25 Connector Ports (DTE) Master port 232XSS configured port. 232PE Serial Port Signal Ports (DTE) DB25 Connector Direction DB25 Connector <-6* <-8* Pins tied together inside 232PE share same input.
Chart Connector Ports (DTE) Master port 232XSS configured port. 232PE Serial Port Signal Ports (DTE) Connector Direction DB25 Connector <-20 Pins tied together inside 232PE share same input.
Appendix
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Chart DB25 Connector Ports (DTE) Master port 232XSS configured port with modem connected (see Chart 232PE Serial Port Signal Ports (DTE) DB25 Connector Direction DB25 Connector <-20 Pins tied together inside 232PE share same input. Chart Connector Ports D(DTE) Master port 232XSS configured port with modem connected (see Chart 232PE Serial Port Signal Ports (DTE) Connector Direction DB25 Connector <-20 Pins tied together inside 232PE share same input.
232PE3095 Manual
Appendix
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
Chart RS-422/485 4-Wire Device Port Configured RS-422 /485 Port. Master port 232XSS configured RS-232 port. RS-422/485 232PE 4-Wire Signal Ports Device Direction DB25 Connector (A)* (B)* Signal Ground (A)* (B)* <-14 device being connected uses place "A", replaces replaces "A". NOTE: Make sure port's jumpers proper position four-wire communications. Chart RS-422/485 2-Wire Device Port Configured RS-422/485 Port. Master port 232XSS configured RS-232 port. RS-422/485 232PE 2-Wire Signal Ports Device Direction DB25 Connector Data (A)* Data (B)* Signal Ground device being connected uses place "A", replaces replaces "A". NOTE: Make sure port's jumpers proper position two-wire communications.
Appendix
232PE3095 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 434-7094
FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFACE STATEMENT
Class Equipment This equipment been tested found comply with limits Class digital device, pursuant Part Rules. These limits designed provide reasonable protection against harmful interference when equipment operated commercial environment. This equipment generates, uses, radiate radio frequency energy and, installed used accordance with instructions, cause harmful interference radio communications. Operation this equipment residential area likely cause harmful interference, which case user will required correct interference personal expense.
Class Equipment Statement
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