Detailed instructions for use are in the User's Guide.
instruction manual
AXB-232++
RS-232/422/485 Interface
AXlink Bus Controllers
Table of Contents
Table of Contents
Product Information .................................................................................................1
Front Panel........................................................................................................................ 1 Rear Panel ........................................................................................................................ 1 Specifications .................................................................................................................... 2
Installation and Wiring .............................................................................................3
Setting the Internal Jumpers ............................................................................................. 3
Setting jumper JP4 to terminate RS-422 input with 100 ohms................................................. 3 Setting jumper JP5 to set the RS-422 port for RS-485 use ..................................................... 4
Setting the DIP Switches................................................................................................... 4
Setting the DEVICE DIP switch................................................................................................ 4 Setting the RS-232/422 DIP switch.......................................................................................... 5
Wiring Devices to the AXB-232++..................................................................................... 6
Preparing captive wires............................................................................................................ 6 Wiring guidelines...................................................................................................................... 6 Using AXlink............................................................................................................................. 6 Using AXlink and External Power Supply ................................................................................ 6 Using RS-232........................................................................................................................... 7 Using Hardware Handshaking ................................................................................................. 7 Using RS-422........................................................................................................................... 7 Using RS-485........................................................................................................................... 7 Rack-mounting the AXB-232++ (optional) ............................................................................... 8 Replacing the Lithium Batteries ............................................................................................... 8
Programming ............................................................................................................9
Send_Commands.............................................................................................................. 9
Axcess program characteristics ............................................................................................. 11
Send_String Escape Sequences..................................................................................... 12 AXB-232++ Program Statements.................................................................................... 13 Xmodem Timing Commands........................................................................................... 14 AXlink Master Statements ............................................................................................... 14 Reserved Channels......................................................................................................... 15 Axcess Master Mode....................................................................................................... 15
AXB-232++ RS-232/422/485 Interface
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Table of Contents
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AXB-232++ RS-232/422/485 Interface
Product Information
Product Information
The AXB-232++ RS-232/422/485 Interface is an AXlink bus controller that provides remote control for devices that require a variety of control protocols. The AXB-232++ extends RS-232, RS-422, or RS-485 control to remote sources over the 4-wire AXlink data/power bus. Onboard processing and memory allows the controller to take on complex tasks by itself, reducing the processing burden for the Axcess control system. For example, the control system can use simplified commands for generic video switcher or code control, a modular driver program in the AXB-232++ can process control for specific makes and models.
Front Panel
FIG. 1 displays the front panel of the AXB-232++.
AXlink
DEVICE
ON
RS-232/422
ON
RX
TX
AXlink LED DEVICE DIP switch
TX LED RX LED RS-232/422 DIP Switch
FIG. 1 AXB-232++ front panel
Rear Panel
FIG. 2 displays the rear panel of the AXB-232++.
RS232 GND RTS CTS RS422 12V RX RX RS232 GND GND RX
AXlink
PWR AXM AXP
TX
TX
Hardware handshaking connections RS422 connections FIG. 2 AXB-232++ rear panel
TX
AXlink connector
RS232 connections
AXB-232++ RS-232/422/485 Interface
1
Product Information
Specifications
The following table lists the specifications for the AXB-232++. Specifications
Power Processor 12 VDC @ 160 mA On board 32-bit processor and 384K (of non-volatile memory) run Axcess programs independent of the control system. This relieves the AXlink bus and controller for the processing time for controlling those devices. (Requires Axcess Version 3.0 or higher.) · Baud rates - 300, 600, 1200. 2400, 4800, 9600, 19200 and 38400. 56400 is supported via the BAUDMED Send Command (see the Send_Commands section on page 9 for details). 115200 is supported via the BAUDHIGH Send Command (see the Send_Commands section on page 9 for details). · Data bits - 7, 8, and 9 · Stop bits - 1 and 2 · Parity - None, Odd, Even, Mark and Space Buffers Front Panel AXlink LEDs Green AXlink status indicator: · Full-Off indicates no power is being received or the controller is not functioning properly. · One blink per second power is active and AXlink communication is functioning. · Full-On indicates power is active and AXlink data communication is not functional. RX LED (Red) TX LED (Red) DEVICE DIP Switch Blinks to indicate the AXB-232++ is receiving RS-232, RS-422, or RS-485 data. The RX LED blinks even if the data being received is incorrect. Blinks to indicate the AXB-232++ is sending RS-232, RS-422, or RS-485 data. An eight-position DIP switch used to set the device number for the AXB-232++. Refer to Setting the DEVICE DIP switch, on page 4, and Setting jumper JP5 to set the RS-422 port for RS-485 use section on page 4 for more information. An eight-position DIP switch used to set the communication parameters for the RS-232/422 device. Refer to Setting the RS-232/422 DIP switch, on page 5, for more information. · 1KB input buffer · 1KB AXlink buffer
Asynchronous data standards
RS232/422 DIP Switch
Rear Panel Hardware handshaking connector RS422/232 connector AXlink connector Internal Jumpers Supports Dimensions (HWD) Weight Enclosure Included Accessories Optional Accessories An RTS/CTS data connector that can be wired for hardware handshaking if called for by the controlled device (4-pin male). A captive-wire connector wired for RS-422/232 data control (8-pin male). Receives power and data via the AXlink bus and AXlink system controller (4-pin male). Sets differential input termination and enables RS-485 output. XON/XOFF software and hardware handshaking 1.5" x 5.5" x 5.5" (3.81 cm x 13.97 cm x 13.97 cm) 1.1 lbs. (498.95 g) Metal with black matte finish · AXlink connector (4-pin female) · Phoenix connector (8-pin male) · CC-232 Control Cable · AC-RK Accessory Rack Kit · 12 VDC power supply, 800 mA
2
AXB-232++ RS-232/422/485 Interface
Installation and Wiring
Installation and Wiring
The AXB-232++ can be used as an independent RS-232/422/485-controlled interface by setting the internal jumpers. Configure the communication parameters using the DIP switches on the front panel.
Setting the Internal Jumpers
JP4
Internal jumper JP4 Internal jumper JP5
JP5
CORP.
1998
front
AXB-232++
FIG. 3 Location of internal jumpers
Setting jumper JP4 to terminate RS-422 input with 100 ohms Terminating a device involves installing a 100 ohm line terminator, this is typically used to achieve better communication and signal integrity. You will want to terminate when the communication is at a high data rate or over a long distance. Termination can be harmful because it increases the current in the line, and more radiation that could interfere with signals. Jumper JP4 places 100 Ohms termination across RS422 receive data pins 5 & 6: 1. Disconnect the RS-232/422/485 connectors. 2. Unscrew the two screws on the rear panel, and remove the panel. 3. Slide the circuit board out of the enclosure. 4. Locate the JP4 jumper (FIG. 3). 5. Install the jumper in the 'ON' position (default setting = OFF). 6. Slide the circuit board back into the enclosure. 7. Replace the panel, and refasten the screws. 8. Reconnect the RS-232/422/485 connectors.
AXB-232++ RS-232/422/485 Interface
3
Installation and Wiring
Setting jumper JP5 to set the RS-422 port for RS-485 use 1. Disconnect the RS-232/422/485 connectors. 2. Unscrew the two screws on the rear panel, and remove the panel. 3. Slide the circuit board out of the enclosure. 4. Locate the JP5 jumper (see FIG. 3 on page 3). 5. Set jumper JP5 to the ON position (the default setting is OFF). 6. Slide the circuit board back into the enclosure. 7. Replace the panel, and refasten the screws. 8. Reconnect the RS-232/422/485 connectors.
Setting the DIP Switches
Use the DIPSwitch 2.0 application available for free download from AMX to quickly figure out DIP Switch settings for all types of DIP Switches.
Setting the DEVICE DIP switch Set the device number on DEVICE DIP switch, located on the front of the AXB-232++. The device can be 1 of the 255 devices in an Axcess control system. The device number must match the device assignment in the Axcess program. Device numbers are assigned into the following three segments: Cards 1 through 95 Boxes 96 through 127 Panels 128 through 255 Set the device number by setting the device DIP switches. The device number is the total of all of the switches in the ON position, and take effect by cycling the power. The following table shows the switch numbers and their corresponding values. DEVICE DIP Switch Settings
Position Value 1 1 2 2 3 4 4 8 5 16 6 32 7 64 8 128
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AXB-232++ RS-232/422/485 Interface
Installation and Wiring
Setting the RS-232/422 DIP switch Set the stop bits, data bits, parity, and baud rate on the RS-232/422 DIP switch, located on the front panel (see FIG. 1 on page 1). The AXB-232++ supports the following asynchronous data standards: Stop bits 1 and 2 Data bits 7, 8, and 9 Parity None, Odd, Even, Mark, and Space Baud rates 300, 600, 1,200, 2,400, 4,800, 9,600, 19,200 and 38,400. 57,600 is achieved by setting the DIP switch to 300 baud, and using the 'BAUDMED' Send_Command (see the Send_Commands section on page 9 for details). 115,200 is achieved by setting the DIP switch to 300 baud, and using the 'BAUDHIGH' Send_Command (see the Send_Commands section on page 9 for details). The table below shows the RS-232/422 DIP switch numbers, functions, and their corresponding values. RS-232/422 DIP Switch Settings
Switch 1 2 3 4 Parity Off Off Unused On Off Unused Off RS232/422 On Unused On On Unused 1 2 3 4 5 6 7 8 ON Off Off Mark On Off Even Off On Odd On On None On On On Off On On On Off Off On Off Off Off On Off Off 5 6 7 Baud Rates Off 300 Off 600 On 1,200 On 2,400 Off 4,800 Off 9,600 On 19,200 On 38,400 On On On On Off Off Off Off 8 Function Stop Bits Data Bits Setting Value Off 2 bits On 1 bit Off 7 bits On 8 bits
AXB-232++ RS-232/422/485 Interface
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Installation and Wiring
Wiring Devices to the AXB-232++
Preparing captive wires To connect the wiring into a captive-wire connector: 1. Strip 1/4 inch off the wire insulation for all four wires. 2. Tin 2/3 of the exposed wire. 3. Insert each wire into the appropriate captive-wire connector up to the insulation. 4. Tighten the captive screws to secure the fit in the connector.
If the device is using a separate power supply, do not connect the power wiring from the AXB-232++ to that device.
Wiring guidelines The interface requires a 12 VDC power to operate properly. The interface uses a PSN2.8 power supply. The Central Controller supplies power via the AXlink cable or external 12 VDC power supply. The maximum wiring distance between the Central Controller and interface is determined by power consumption, supplied voltage, and the wire gauge used for the cable. The table below lists wire sizes and maximum lengths all ...
