Instruction Manual Power Supply Unit For BL Series N-42 (with RS-232C/RS-422A conversion) N-48 (with RS-485 multi-drop link) 1
CONTENTS SAFETY PRECAUTIONS Part Names ....................................................... 4 System Configuration ........................................ 5 Connecting the Power Supply ........................... 7 Input/output Connections .................................. 8 Clips Used for Terminals ................................... 9 Terminator Switch ............................................. 9 Connecting the BL Series ............................... 10 Connecting the Communication Interface .
SAFETY PRECAUTIONS General precautions Cautions Specific to the N-42/N-48 • At startup, be sure to check the functions and performance of the N-42/N-48. CAUTION • We recommend that you take substantial safety measures to avoid any damage in the event a problem occurs. To use this power supply unit, observe the following instructions: • Do not open or modify the N-42/N-48 or use it in any way other than described in the specifications. • This unit uses a 24 VDC power supply.
PART NAMES The following parts identification is common for both the N-42 and N-48. 1 READER port No.
SYSTEM CONFIGURATION ■ N-42 BL series or RS-232C equipment READER port Sensor for trigger input Trigger input N-42 Maximum extension distance: 1.2 km READER POWER SD RD RS-422A equipment PLC N-42 OK/NG output RS-422A • • When the N-42 is used as an RS-232C/RS-422A converter, connect the RS-232C equipment to the READER port of the N-42. Turn ON the terminator of both the N-42 and the RS-422A equipment (termination resistor: 100 Ω).
SYSTEM CONFIGURATION ■ N-48 The following diagram shows the system configuration that uses the N-400 multi-drop unit as the master unit and drives the BL series bar code readers in multi-drop link mode. For details of the multidrop link, see the N-400 User’s Manual. • Sensor for trigger input • BL series Maximum number of connectable units: 31 Maximum total extension distance: 1.
CONNECTING THE POWER SUPPLY ■ N-42 ■ N-48 RS-485 24V DC IN – N.C. N.C. N.C. + SG 24 VDC + + – 24V DC OUT + – 24V DC IN – + 24 VDC + Connect a 24 VDC power supply to the 24 V DC IN terminal. Since the 24 V DC IN and 24 V DC OUT terminals are connected internally, the 24 V DC OUT terminal can be used as a 24 VDC power output terminal. CAUTION • • Make sure that a 24 VDC power supply is connected. Using any other power supply may damage the unit.
INPUT/OUTPUT CONNECTIONS The following I/O connections are common for both the N-42 and N-48. ■ Connecting OK/NG output The trigger input allows the BL series to start reading bar codes. The trigger input turns ON when 15 to 26 VDC input is activated. The BL series uses OK/NG output to compare the read data with the preset data, or to judge whether a bar code can be correctly read.
CLIPS USED FOR TERMINALS TERMINATOR SWITCH To connect the power supply, trigger input and OK/NG output, you can use the wire-pin clips, as shown below. To connect the N-42/N-48 to RS-422A/RS-485 equipment, turn ON the terminator of the equipment at both ends of the connection [marked with * in the system configuration diagram on p. 6] (termination resistor: 100Ω). * The terminator switch is factory-set to OFF. 2.0 mm max. 5 mm max.
CONNECTING THE BL SERIES Connect the BL series to the READER port of the N-42/N-48. READER port pin assignment 1 2 3 4 5 BL Series 6 7 8 9 D-sub 9-pin (male) DCE specification (defined as terminal) #4-40 screw Pin No.
CONNECTING THE COMMUNICATION INTERFACE ■ N-42 • Connect the N-42 to external equipment through the RS-422A communication interface as described below. To connect the N-42 to another N-42 unit, perform the same connections. RS-422A Twisted pair cable External equipment (N-42) N-42 SG SD+ SD– RD+ RD– Code SG SD+ SDRD+ RD* * Description Ground Sends data to + terminal. Sends data to - terminal. Receives data from + terminal. Receives data from - terminal.
CONNECTING THE COMMUNICATION INTERFACE • Connecting N-42 to KV-L2 • Twisted pair cable N-42 SG SD+ SD– KV-L2 Twisted pair cable SG RDB RDA RD+ SDB RD– SDA KV-L2 is not available in Europe.
CONNECTING THE COMMUNICATION INTERFACE ■ N-48 To connect the BL series in RS-485 multi-drop link mode through the N-48, the N-400 multi-drop unit must be used as the master unit. For the multi-drop link connecting and operating procedures, see the N-400 User’s Manual. The pin assignments for the N-48 and RS-485 equipment are as follows.
USING N-42 AS RS-232C/RS-422A CONVERTER The N-42 can be used as a general RS-232C/ RS-422A converter. For the RS-422A connection, see p. 11 to p.12. To connect the RS-232C equipment to the READER port, follow the connection diagram shown below. (For pin assignment, see p. 10.) • Connecting N-42 to PC (with 25-pin connector) N-42 Connector case RD PC 1 2 2 SD SD 3 3 RD 5 7 SG RS 7 4 RS CS 8 5 CS 6 DR 20 ER D-sub 25-pin (male) M2.
USING N-42 AS RS-232C/RS-422A CONVERTER • Connecting N-42 to BL-3300 series N-42 BL-3300 Connector case 2 SD Connector case RD 2 SD 3 3 RD SG 5 5 SG RS 7 7 RS CS 8 8 CS D-sub 9-pin (female) #4-40 screw CAUTION The READER port pin No. 9 is used for a +5 V power supply output. Be sure not to use pin No. 9 to connect external equipment. This may damage the unit. D-sub 9-pin (female) #4-40 screw To connect to the BL-3300 series, use our optional cable OP-27937 (2 m).
INSTALLATION ■ Operating environment ■ Mounting N-42/N-48 Since the N-42/N-48 is a precision instrument, choose its operating environment carefully. Avoid mounting the unit in a location where: To mount the N-42/N-48, use the mounting holes provided on the unit. The same mounting method is used for both the N-42 and N-48.
SPECIFICATIONS Model Conversion interface Connectable bar code reader Power supply for bar code reader Trigger Input rating Max.
DIMENSIONS Unit: mm (70) 5.5 2 x ø4.5 mounting hole 55 43.2 5.9 5.9 18 63.
Specifications are subject to change without notice.
