BB-4WSD9R BB-4WSD9TB Port-powered RS-232 to RS-485 Converters Features Change RS-232 TD and RD to RS-485 signals Extend RS-232 data signals up to 1.2 km (4,000 ft.) Data rate: 115.2 kbps Quick, inline installation DIP switch selectable RS-422 or RS-485 RS-232 port-power or external 12 Vdx source (power supply not included, sold separately) Introduction Ordering Information Models BB-4WSD9TB and BB-4WSD9R, universal serial converters, provide RS-232 to RS-232 RS-485 Optional Power Model No. Output RS-422/RS-485 conversion using either port-power or an external power supply. Model Connector (DCE) Connector Supply RS-485 2 or 4 wire, BB-4WSD9TB has a terminal block RS-485 connector Model BB-4WSD9R has a DB9 BB-4WSD9R DB9 Female DB9 Female Yes or RS-422 female RS-485 connector. RS-485 2 or 4 wire, BB-4WSD9TB DB9 Female Terminal Block Yes or RS-422 Data is converted in both directions, RS-232 Transmit Data is converted to balanced RS- 422 or RS-485 Transmit Data. Received RS-422/485 signals are converted to RS-232. Accessories Sold Separately Unlike converters that require programming hardware handshaking signals to control BB-SMI6B-12V-P230C1 Power supply, 12 Vdc, 6 W, 2.5 mm plug(+), International AC input, RS-422 or RS-485 operation, Models BB-4WSD9TB and BB-4WSD9R provide automatic International AC blades Send Data Control. In RS-485 mode, the RS-485 driver is enabled by circuitry which senses the RS-232 TD input. In half-duplex RS-485 mode, the receiver is enabled when BB-9PAMF6 Serial adapter cable, DB9 male to DB9 female, 1.8 m (6 ft) not transmitting. For full-duplex operation, the receiver is set always enabled. In RS-422 mode, the transmitter and receiver are always enabled. The operating mode is The RS-232 port has a female DB9 connector with pins 2 (RD), 3 (TD), and 5 (Signal Ground) set with 4 switches see Table 1. The converters are powered by the RS-232 signal lines supported. Pins 7 (RTS) and 8 (CTS) are tied together, and pins 6 (DSR), 1 (DCD), and 4 (DTR) are whether they are set high or low. If not enough power is available from the port, or no also tied together. Any incoming data lines in either the high or low state are used to port power the handshaking lines are available, a DC jack is provided to connect an optional external 12 converter. The more handshake lines available, the more likely the unit can be port powered. Table Vdc supply. The DB9 female connector for RS-232 is wired as DCE (like a modem). 2. shows the RS-232 pinout. Table 1. RS-422/485 Pinout Table 2. RS-232 Pinout Pin Signal Pin Signal 2 RDA(-) 1 DCD 3 TDB(+) 2 RD 4 Ground 3 TD 6 Ground 4 DTR 7 RDB(+) 5 Ground 8 TDA(-) 6 DSR 7 RTS No external power is required if two RS-232 output handshake lines are available and 8 CTS the cable run is short. If the handshake lines are raised and no termination is used, the power efficiency is greatly increased. Less than 3 mA is required to operate the converter Although handshake lines can be used to power the converter, no handshaking is required to control - plus the load current. For applications that do not have handshake lines or require a the RS-422/RS-485 driver. With Switch 1 set to RS-422, the driver is always enabled. When Switch large load current, power may be externally supplied with a +12 Vdc power supply with a 1 is in the RS-485 position, the RS-485 driver is automatically enabled during each spacing state on 2.5mm plug (tip positive). (Power supply not included, sold separately.) the RS-232 side. During the marking or idle state, the RS-485 driver is disabled and the data lines are held in the marking state by the 4.7K Ohm pull-up and pull-down resistors. The value of these resistors may need to be changed to a different value when termination is used in order to maintain the proper DC bias during the idle state. BB-USOPTL4-2P BB-USOPTL4-4P 0221ds All product specifications are subject to change without notice. BB-4WSD9R BB-4WSD9TB 2621dsBB-4WSD9R BB-4WSD9TB Specifications Serial Technology Environmental Data Rate Up to 115.2 kbps, maximum Operating Temperature 0 to +70 C (+32 to +158 F) Storage Temperature -40 to +85 C (-40 to +185 F) RS-232 BB-4WSD9R: DB9 female Operating Humidity 0 to 95%, non-condensing RS-232 Connector BB-4WSD9TB: DB9 female Meantime Between Failures (MTBF) RD, TD, GND supported. RS-232 Signals / BB-4WSD9R: 880179 MTBF Pins 7 (RTS) and 8 (CTS) are tied together. Port-Power * BB-4WSD9TB: 345242 Pins 6 (DSR), 1 (DCD), and 4 (DTR) are tied together. Calculation Method MIL217F Parts Count Reliability Prediction RS-422/RS-485 Regulatory Approvals / Standards / Directives BB-4WSD9R: DB9 female RS-422/485 Connector Approvals FCC Part 15, CISPR, CE BB-4WSD9TB: Terminal block 2014/30/EU Electromagnetic Compatibility Directive (ECD) RS-422/485 Signals TDA (-), TDB (+), RDA (-), RDB (+), GND 2011-65/EU amended by (EU) 2015/863 Reduction of DIP switch selectable RS-422 or RS-485 CE - Directives Hazardous Substances Directive (RoHS) Operation BB-4WSD9R: RS-485 2 or 4-wire or RS-422 2012/19/EU Waste Electrical and Electronic Equipment (WEEE) BB-4WSD9TB: RS-485 2 or 4-wire or RS-422 EN 55032 Class B - Electromagnetic Compatibility of Multimedia Biasing Resistors 4.7k Ohms Equipment - Emission Requirements CE - Standards Termination None EN 55024 - Information Technology Equipment - Immunity Power Characteristics - Limits and Methods of Measurement Port-powered: from RS-232 handshake lines. EN 61000-6-3 + A1 - Generic Emission Standard for Residential, Source External 12 Vdc power supply optional, Commercial and Light-industrial Environments (Class B) Other Standards (not included, sold separately) EN 61000-6-1 - Generic Immunity Standard for Residential, Port-powering requires 7 to 12 Vdc supplied on at least one Commercial and Light-industrial Environments * Port-Power handshake line. Connector 2.5 mm plug (tip positive) Input Voltage 12 Vdc Mechanical BB-4WSD9R: 7.8 x 4.3 x 2.0 cm (3.0 x 1.6 x 0.8 in) Dimensions BB-4WSD9TB: 9.0 x 4.3 x 2.3 cm (3.6 x 1.7 x 0.9 in) Enclosure Plastic Mounting In-line installation BB-4WSD9R: 49 gm (0.10 lb) Weight BB-4WSD9TB: 50 gm (0.11 lb)