Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    SP238 Search Results

    SF Impression Pixel

    SP238 Price and Stock

    Essentra Components 13SP238

    ROUND SPACER, .140 ID, .500 OD,
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 13SP238 Bulk 1,600 1
    • 1 $0.11
    • 10 $0.11
    • 100 $0.0625
    • 1000 $0.04997
    • 10000 $0.04997
    		Buy Now
    Mouser Electronics 13SP238
    • 1 $0.19
    • 10 $0.138
    • 100 $0.111
    • 1000 $0.093
    • 10000 $0.085
    		Get Quote
    RS 13SP238 Bulk 4 Weeks 500
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.117
    • 10000 $0.117
    		Get Quote

    Advanced Thermal Solutions Inc ATS-P2-38-C2-R0

    HEATSINK 36.83X57.6X22.86MM T766
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey ATS-P2-38-C2-R0 Bulk 92 100
    • 1 -
    • 10 -
    • 100 $8.6265
    • 1000 $8.6265
    • 10000 $8.6265
    		Buy Now

    L-com Inc USP238B

    PANEL FOR 2 KEYSTONE BLACK
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey USP238B Bag 1
    • 1 $14.34
    • 10 $14.34
    • 100 $14.34
    • 1000 $14.34
    • 10000 $14.34
    		Buy Now
    Newark USP238B Bulk 41 1
    • 1 $9.82
    • 10 $9.22
    • 100 $8.61
    • 1000 $8.61
    • 10000 $8.61
    		Buy Now
    RS USP238B Bulk 3 Weeks 1
    • 1 $10.79
    • 10 $10.79
    • 100 $10.79
    • 1000 $10.79
    • 10000 $10.79
    		Get Quote

    MaxLinear Inc SP238AET-L

    IC TRANSCEIVER FULL 4/4 24SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SP238AET-L Tube
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now

    MaxLinear Inc SP238ACT-L

    IC TRANSCEIVER FULL 4/4 24SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SP238ACT-L Tube
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Find more SP238 price and stock on Findchips.com

    SP238 Datasheets (24)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    SP238 Unknown Interface IC/Device Data Book (Japanese) Scan PDF
    SP238A Sipex +5V Powered Multi-Channel RS-232 Drivers/Receivers Original PDF
    SP238ACP Harris Semiconductor HIN230/240 Interface Family Cross Reference Original PDF
    SP238ACS Sipex +5 V Powered Multi-Channel RS-232 Driver/Receiver Original PDF
    SP238ACT Harris Semiconductor HIN230/240 Interface Family Cross Reference Original PDF
    SP238ACT Sipex +5 V Powered Multi-Channel RS-232 Driver/Receiver Original PDF
    SP238ACT-L Exar Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC DVR/RCVR RS232 MULTI 24WSOIC Original PDF
    SP238ACT-L Sipex +5V Powered Multi-Channel RS-232 Drivers/Receivers Original PDF
    SP238ACT-L/TR Exar Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC DVR/RCVR RS232 MULTI 24WSOIC Original PDF
    SP238ACT-L/TR Sipex +5V Powered Multi-Channel RS-232 Drivers/Receivers Original PDF
    SP238ACT/TR Sipex +5V Powered Multi-Channel RS-232 Drivers/Receivers Original PDF
    SP238ACX Sipex +5 V Powered Multi-Channel RS-232 Driver/Receiver Original PDF
    SP238ACX-L Sipex +5V Powered Multi-Channel RS-232 Drivers/Receivers Original PDF
    SP238ACX-L/TR Sipex +5V Powered Multi-Channel RS-232 Drivers/Receivers Original PDF
    SP238ACX/TR Sipex +5V Powered Multi-Channel RS-232 Drivers/Receivers Original PDF
    SP238AEP Harris Semiconductor HIN230/240 Interface Family Cross Reference Original PDF
    SP238AES Sipex +5 V Powered Multi-Channel RS-232 Driver/Receiver Original PDF
    SP238AET Harris Semiconductor HIN230/240 Interface Family Cross Reference Original PDF
    SP238AET Sipex +5 V Powered Multi-Channel RS-232 Driver/Receiver Original PDF
    SP238AET-L Exar Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC DVR/RCVR RS232 MULTI 24WSOIC Original PDF

    SP238 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    13756e

    Abstract: 213L2 67334 transistors 6822 430604 457789 sr 13009 213e 455e t3 055e
    Text: Product Characterization Report for the SP213 Family of Products SP204, SP207, SP208, SP211, SP213, SP238, and SP241 Products Prepared By: Velvet Doung & Greg West Date: August 21, 2006 SP213 Product Family Characterization Report Table of Contents Section


    Original     		PDF SP213 SP204, SP207, SP208, SP211, SP213, SP238, SP241 SP213 13756e 213L2 67334 transistors 6822 430604 457789 sr 13009 213e 455e t3 055e

    SP238A

    Abstract: SP238ACT-L SP238AET-L IBM computer circuit diagram inexpensive
    Text: SP238A +5V Powered Multi-Channel RS-232 Drivers/Receivers • Operates from a Single +5V Power Supply • Meets All RS-232D and V.28 Specifications • ±30V Receiver Input Levels • Low Power CMOS Operation • Operates with 0.1µF ceramic capacitors •


    Original     		PDF SP238A RS-232 RS-232D SP238A RS-232 SP238ACT-L SP238AET-L IBM computer circuit diagram inexpensive

    GOERTZEL ALGORITHM fsk SOURCE CODE

    Abstract: modem circuit echo TMS320C10 fft TMS320C10 TMS320C51 SPRA012 equalizer HF modem VOCODER "V.34Q" taylor differential transmitter
    Text: DSP Solutions for Telephony and Data/Facsimile Modems Tim Massey and Ramesh Iyer Technical Staff-Western Area DSP Applications Digital Signal Processing Solutions — Semiconductor Group SPRA073 January 1997 IMPORTANT NOTICE Texas Instruments TI reserves the right to make changes to its products or to discontinue any semiconductor


    Original     		PDF SPRA073 201B/C) GOERTZEL ALGORITHM fsk SOURCE CODE modem circuit echo TMS320C10 fft TMS320C10 TMS320C51 SPRA012 equalizer HF modem VOCODER "V.34Q" taylor differential transmitter

    5V and 12V RS-232, 2 Drivers, 2 Receivers

    Abstract: capacitor cross reference voltage regulator 5 pin SPX29302U5 RS-485 maxim MAX3491EESA DS26LS31TM LP2950ACN-5.0 LP2950CZ-3.3 equivalent AAT4625
    Text: Product Cross Reference Guide January 2004 2004 Sipex Cross Reference Guide Table of Contents Manufacturers Analog Devices AnalogicTech Astec Bay Linear Cal Logic Dallas Semiconductor Exar Fairchild Harris International Rectifier Intersil Linear Technology


    Original     		PDF OT-23 TPS61040 SP6690 TPS61040DBV SP4446EK TPS61041 SP4446 5V and 12V RS-232, 2 Drivers, 2 Receivers capacitor cross reference voltage regulator 5 pin SPX29302U5 RS-485 maxim MAX3491EESA DS26LS31TM LP2950ACN-5.0 LP2950CZ-3.3 equivalent AAT4625

    PC MOTHERBOARD IBM BARBADOS

    Abstract: APC UPS CIRCUIT DIAGRAM ibm barbados motherboard PC MOTHERBOARD BARBADOS IBM APC UPS es 500 CIRCUIT DIAGRAM inverter welding machine circuit board UPS APC CIRCUIT manual repair offline ups 600 va APC back UPS RS 800 APC Back ES 500 UPS
    Text: Embedded Modem + Internet Applications MT5634SMI-IP Developer’s Guide ModemModule ModemModule IP Developer’s Guide Embedded Modem + Internet Applications MT5634SMI-IP PN S000241B, Revision B 6/25/02 Copyright This publication may not be reproduced, in whole or in part, without prior expressed written permission from MultiTech Systems, Inc. All rights reserved.


    Original     		PDF MT5634SMI-IP S000241B, 22bis 42bis PC MOTHERBOARD IBM BARBADOS APC UPS CIRCUIT DIAGRAM ibm barbados motherboard PC MOTHERBOARD BARBADOS IBM APC UPS es 500 CIRCUIT DIAGRAM inverter welding machine circuit board UPS APC CIRCUIT manual repair offline ups 600 va APC back UPS RS 800 APC Back ES 500 UPS

    Hitachi LCD panel 640x240 touch 20 pin monochrome 4 grayscale

    Abstract: HD6417709 SH3 HD6417709 HD64461 SH7709 HD64462 hitachi sh3 sharp 640x240 lcd lcd 640 x 204 citizen K6488L-FF
    Text: Hitachi Company Confidential SH7709 Windows CE Reference Platform PFM-DS3 Application Note (Rev.1.0) Application Laboratory Semiconductor & Integrated Circuits Division Hitachi, Ltd. Page 1 Hitachi Company Confidential Notice When using this document, keep the following in mind:


    Original     		PDF SH7709 D9000 D9000, D9000 SH7709CE Hitachi LCD panel 640x240 touch 20 pin monochrome 4 grayscale HD6417709 SH3 HD6417709 HD64461 HD64462 hitachi sh3 sharp 640x240 lcd lcd 640 x 204 citizen K6488L-FF

    SP241CCT

    Abstract: SIPEX SP211CA SP207HCT SP211EET SP204EP-L SP208CA SP208CA-L SP208CP SP208CP-L SP208CT
    Text: PRODUCT CHANGE NOTICE MS1341 PART NUMBER S : PCN No.: 06-0130-09a Please see attachment. DATE: March 7, 2006 PART DESCRIPTION: Power Management and Interface Products – Change in Wafer Fabrication Site LEVEL OF CHANGE: [X] Level I, Customer Approval. [ ] Level II, Customer Information.


    Original     		PDF MS1341 06-0130-09a CHASP207HCP-L SP207HCT SP207HCT-L SP207HEA SP207HEA-L SP207HEP SP207HEP-L SP207HET SP241CCT SIPEX SP211CA SP207HCT SP211EET SP204EP-L SP208CA SP208CA-L SP208CP SP208CP-L SP208CT

    SP208CP

    Abstract: SP204EP-L SP208CA SP208CA-L SP208CP-L SP208CT SP208EA SP208EA-L SP208ECA SP238ACS
    Text: PRODUCT CHANGE NOTICE MS1341 PART NUMBER S : PCN No.: 06-0130-09 Please see attachment. DATE: January 30, 2006 PART DESCRIPTION: Power Management and Interface Products – Change in Wafer Fabrication Site LEVEL OF CHANGE: [X] Level I, Customer Approval. [ ] Level II, Customer Information.


    Original     		PDF MS1341 CSP207HCP-L SP207HCT SP207HCT-L SP207HEA SP207HEA-L SP207HEP SP207HEP-L SP207HET SP207HET-L SP208CP SP204EP-L SP208CA SP208CA-L SP208CP-L SP208CT SP208EA SP208EA-L SP208ECA SP238ACS

    SP235ACP

    Abstract: c1t4 234A2 110uf
    Text: SP230A/234A/235A/236A/237A/238A/241A SP235B/236B/240A/240B/241A/241B +5V Powered Multi-Channel RS-232 Drivers/Receivers features description The SP230A Series are multi–channel RS-232 line drivers/receivers that provide a variety of configurations to fit most communication


    Original     		PDF SP230A/234A/235A/236A/237A/238A/241A SP235B/236B/240A/240B/241A/241B RS-232 RS-232D SP230A SP236ACS SP236ACT SP236ACX SP236BCS SP235ACP c1t4 234A2 110uf

    Mark Alexander A Current Feedback Audio Power Amp

    Abstract: FIR FILTER implementation flowchart TMS320C54x TMS320C10 for iir filter applications GOERTZEL ALGORITHM fsk SOURCE CODE 16 QAM Transmitter Implementation of qam on TMS320C54x fsk modem 1200 V.34 handshake 16 QAM receiver block diagram taylor chart recorder
    Text: DSP Solutions for Telephony and Data/Facsimile Modems Application Book 1997 Digital Signal Processing Solutions Printed in U.S.A., January 1997 SPRA073 DSP Solutions for Telephony and Data/Facsimile Modems Tim Massey and Ramesh Iyer Technical Staff-Western Area DSP Applications


    Original     		PDF SPRA073 201B/C) Mark Alexander A Current Feedback Audio Power Amp FIR FILTER implementation flowchart TMS320C54x TMS320C10 for iir filter applications GOERTZEL ALGORITHM fsk SOURCE CODE 16 QAM Transmitter Implementation of qam on TMS320C54x fsk modem 1200 V.34 handshake 16 QAM receiver block diagram taylor chart recorder

    lg crt monitor circuit diagram

    Abstract: hs 8109 DS-17 SANYO 486dx isa bios pin assignment SP1137 hitachi plasma electronic diagram sharp lm64p DS-18 SANYO Spectrol 157 74 VGA 20 PIN LCD MONITOR CABLE CONNECTION DIAGRAM
    Text: SPC8110 LOCAL BUS LCD/CRT VGA CONTROLLER Technical Manual Issue Date: 04/01/97 Document Office No. X07-GQ-001-01 Copyright 1997 S-MOS Systems Inc. All rights reserved. VDC This document, and any text derived, extracted or transmitted from it, is the sole property of S-MOS Systems Inc. and may not be used, copied,


    Original     		PDF SPC8110 X07-GQ-001-01 LM334 X07-GG-002-01 lg crt monitor circuit diagram hs 8109 DS-17 SANYO 486dx isa bios pin assignment SP1137 hitachi plasma electronic diagram sharp lm64p DS-18 SANYO Spectrol 157 74 VGA 20 PIN LCD MONITOR CABLE CONNECTION DIAGRAM

    SP230ACP

    Abstract: SP230A SP234A SP235A SP235B SP236A SP236B SP237A SP239A
    Text: SP230A/234A/235A/236A/237A/238A/239A/241A SP235B/236B/240A/240B/241A/241B +5V Powered Multi-Channel RS-232 Drivers/Receivers • Operates from Single +5V Power Supply +5V and +12V – SP239A ■ Meets All RS-232D and V.28 Specifications ■ ±9V Output Swing with +5V Supply


    Original     		PDF SP230A/234A/235A/236A/237A/238A/239A/241A SP235B/236B/240A/240B/241A/241B RS-232 SP239A) RS-232D SP230A SP30A/234A/235A/236A/237A/238A/239A/ SP241A/235B/236B/240A/240B/241A/241B SP230ACP SP234A SP235A SP235B SP236A SP236B SP237A SP239A

    siemens mc35i

    Abstract: siemens mc35i Terminal siemens modem gsm m20 Terminal mc35i siemens mc35it sim 300s gsm modem siemens modem gsm mc35i Application Note 02 "GSM Default alphabet" mobile switching center msc
    Text: mobile MC35i MC35i Terminal Siemens Cellular Engine Version: DocId: 01.03 MC35i_ATC_V01.03 MC35i AT Command Set s mobile Document Name: MC35i AT Command Set Version: 01.03 Date: May 7, 2004 DocId: MC35i_ATC_V01.03 Status Confidential / Released General Notes


    Original     		PDF MC35i MC35i siemens mc35i siemens mc35i Terminal siemens modem gsm m20 Terminal siemens mc35it sim 300s gsm modem siemens modem gsm mc35i Application Note 02 "GSM Default alphabet" mobile switching center msc

    1A145-016V-001RG\TR

    Abstract: 1N478A.TR RB070M-30 TR SP6654 SP208EH SP26LV432 SP26LV431 SPX29152
    Text: February 28, 2007 Dear Valued Exar Customer: The purpose of this letter is to formally announce Exar’s plan to obsolete products which have had little to zero demand over the last 24 months. Attached you will find two lists: List 1 – includes those devices that we have been supplying in either traditional tin/lead or lead-free lead


    Original     		PDF SPX385M1-1-2 SPX3940AU-1-8 SPX3940AU-2-5 SPX3940AU-5-0 SPX3940AU-L-1-8 SPX3940U-2-5 SPX3940U-3-3 SPX3940U-L-5-0 SPX4041M SPX4041M-L 1A145-016V-001RG\TR 1N478A.TR RB070M-30 TR SP6654 SP208EH SP26LV432 SP26LV431 SPX29152

    CTR21

    Abstract: TR-29 i386 D52070 V25ter
    Text: ELSA MicroLink 56k Fun A Smart Surfboard for the Internet Small and cheery on the outside, but sleek and trimmed for maximum performance on the inside: this modem lets you surf through the Internet at up to 56,000 bps, it sends and receives faxes and even works as an answering machine. Pretty smart, these


    Original     		PDF MicroLinkTM56k D-52070 CTR21 TR-29 i386 D52070 V25ter

    source code for echo cancellation using tms320c5x

    Abstract: TMS320C10 for iir filter applications GOERTZEL ALGORITHM fsk SOURCE CODE DSP CPU non-recursive filter decoder viterbi convolution dtmf fsk caller id Echo cancellation in tms320c50 V.34 handshake fsk transmitter callerid modem echo cancellation dsvd
    Text: DSP Solutions for Telephony and Data/Facsimile Modems Application Book 1997 Digital Signal Processing Solutions Printed in U.S.A., January 1997 SPRA073 DSP Solutions for Telephony and Data/Facsimile Modems Tim Massey and Ramesh Iyer Technical Staff-Western Area DSP Applications


    Original     		PDF SPRA073 SPRA073 source code for echo cancellation using tms320c5x TMS320C10 for iir filter applications GOERTZEL ALGORITHM fsk SOURCE CODE DSP CPU non-recursive filter decoder viterbi convolution dtmf fsk caller id Echo cancellation in tms320c50 V.34 handshake fsk transmitter callerid modem echo cancellation dsvd

    2TY smd transistor

    Abstract: CRT TCL-2027u COLOUR TV SCHEMATIC DIAGRAM free SMD Transistor t5d smd 1R10 diode smd transistor 2TY RAMDAC DIP BT477 5 x 7 DOT MATRIX AND 74LS374 DIAGRAM pal16l8bcn transistor 3b5 smd smd 2TY
    Text: SPC8106 LCD/CRT VGA CONTROLLER SPC8106 Technical Manual Issue Date: 04/01/97 Copyright 1997 S-MOS Systems Inc. All rights reserved. VDC This document, and any text derived, extracted or transmitted from it, is the sole property of S-MOS Systems Inc. and may not be used, copied,


    Original     		PDF SPC8106 2TY smd transistor CRT TCL-2027u COLOUR TV SCHEMATIC DIAGRAM free SMD Transistor t5d smd 1R10 diode smd transistor 2TY RAMDAC DIP BT477 5 x 7 DOT MATRIX AND 74LS374 DIAGRAM pal16l8bcn transistor 3b5 smd smd 2TY

    2TY smd transistor

    Abstract: smd transistor 2TY 4116R lf CRT TCL COLOUR TV SCHEMATIC DIAGRAM schematic diagram cga to vga hs 8109 smd 2TY 4116r resistor pack IC 74ls244 latch datasheet lcd pm 128 bl
    Text: SPC8104 VGA LCD CONTROLLER SPC8104 Technical Manual Issue Date: 04/01/97 Copyright 1997 S-MOS Systems Inc. All rights reserved. VDC This document, and any text derived, extracted or transmitted from it, is the sole property of S-MOS Systems Inc. and may not be used, copied,


    Original     		PDF SPC8104 SPC8104F0A X15AN-002-01) 2TY smd transistor smd transistor 2TY 4116R lf CRT TCL COLOUR TV SCHEMATIC DIAGRAM schematic diagram cga to vga hs 8109 smd 2TY 4116r resistor pack IC 74ls244 latch datasheet lcd pm 128 bl

    HD6417709 SH3

    Abstract: HD64461 Hitachi LCD panel 640x240 touch 20 pin monochrome 4 grayscale HD6417709 lcd 640 x 204 citizen ph7d software for pen drive sharp 640x240 lcd SH7709 K6488L-FF
    Text: SH7709 Windows CE Reference Platform PFM-DS3 Application Note (Rev.1.0) Application Laboratory Semiconductor & Integrated Circuits Division Hitachi, Ltd. Notice When using this document, keep the following in mind: 1. This document may, wholly or partially, be subject to change without notice.


    Original     		PDF SH7709 D9000 D9000, D9000 SH7709CE HD6417709 SH3 HD64461 Hitachi LCD panel 640x240 touch 20 pin monochrome 4 grayscale HD6417709 lcd 640 x 204 citizen ph7d software for pen drive sharp 640x240 lcd K6488L-FF

    RS232

    Abstract: RS-232 Drivers Receivers SP494 transceiver rs232 driver receiver
    Text: Sipe* ' CofporMcn^ SIGNAL PROCESSING EXCELLENCE For Inform ation on any o f the fo llow in g SIPEX Interface Products, please c ontact the SIPEX Literature Department at 508 667-8700. Model D escription 200 Series P roducts S P200. +5V High-Speed RS232 Transceiver with 0.1 nF Capacitors (5 Drivers, 0 Receivers)


    OCR Scan     		PDF RS232 SP20SB SP206B RS485/RS422 RS-232 Drivers Receivers SP494 transceiver rs232 driver receiver

    MAX238

    Abstract: SP237 MAX207 MAX208 MAX237 SP238 MAX2372
    Text: — 180 — Une E IA /R S -2 3 2 Driver/Receiver M A X 2 3 7 * -T : / (M A X 2 0 7 /2 0 8 /2 3 7 /2 3 8 ) (o o 'é O M A X 2 3 7 ,2 3 8 M A X 2 0 7 .2 0 8 # 15 M IN TYP 4.5 Vcc le e R i.^ o o le e R u = 3kQ 9 MAX M IN 5.5 4.5 TYP 7 20 fu t t fc r. MAX 5.5


    OCR Scan     		PDF EIA/RS-232) MAX237^ MAX207/208/237/238) MAX207 MAX237 kS2/2500pF MAX208 MAX238 SP237 SP238 MAX2372

    SP239

    Abstract: SP232
    Text: C ìk \ a _ v ^ • K^Corporation^ A * /v SP230-SP241 SIGNAL PROCESSING EXCELLENCE + 5 V POWERED RS232 DRIVERS/RECEIVERS FEATURES/BENEFITS DESCRIPTION • Operates from Single 5V Power Supply +5V and +12V- SP231 and SP239 ■ Meets Ail RS232C and V.28 Specifications


    OCR Scan     		PDF SP230-SP241 RS232 SP231 SP239) RS232C SP230 SP239 SP232

    HDSP201x

    Abstract: hdsp-201x HDSP231x
    Text: W !w \ H EW LETT m i'f i a PACKARD CMOS H erm etic Extended Tem perature Range 5x7 A lphanum eric D isplays Technical Data F eatures • O n -B o a rd L o w P o w e r CM O S IC In teg rated S hift R egister with C onstant C u rre n t LED Drivers • W ide O p e r a tin g


    OCR Scan     		PDF HCMS-201X/201XTXV/ 201XTXVB HCMS-231X/231XTXV/ 231XTXVB HCMS-235X/ 235XTXV/235XTXVB IL-D-87157 HCMS-201X HCMS-231X/-235X S-235X HDSP201x hdsp-201x HDSP231x

    Untitled

    Abstract: No abstract text available
    Text: SIPEX CORP bOE D • 6203711 DDD32hb Ô51 « S P X W ir N A V « IIU W V V,KV“ V SP230A/234A/235A/236A SP237A/238A/239A/241A SP235B/236B/241B +5V Powered Multi-Channel RS232 Drivers/Receivers ^ Corpor«bwi^ SIGNAL PROCESSIN O EXCELLENCE FEATURES ■ ■


    OCR Scan     		PDF DDD32hb SP230A/234A/235A/236A SP237A/238A/239A/241A SP235B/236B/241B RS232 SP239A) RS232D SP241A SP239A 10V1O-10V