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Telenetics MIU Dial or Leased Line modem with RS-485 manual

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Table of contents for the manual

  • Page 1

    Installation, Operation and Diagnostics for your Communication Interface Unit MIU(Dial or Lease Line modem with) / 485 (RS485) ~ See MIUXXX for modem Technical Data Edition: June 17 , 2003 P / N: 0049 - 0002 - 010 rev A[...]

  • Page 2

    Installation, Operation & Diagnostics Edition: June 17 , 2003 Install Op and Diags for MIU Modems and RS485 (0049 - 0002 - 010A) TABLE of CONTENTS 1.PRODUCT OVERVIEW ......................................................................... Page 1 2.PRODUCT DESCRIPTION .................................................................... Page 1 3[...]

  • Page 3

    Install Op and Diags for MIU Modems and RS485 (0049 - 0002 - 010A) Page 1 of 16 1. PRODUCT OVERVIEW The CIU (MIU XXX485) is an industrial modem with an RS - 232 to RS485 converter module for direct connection to industrial RS485 Interface units. Though similar to commercial modems, the MIUXXX 485 contains special features that m ake it particul[...]

  • Page 4

    Install Op and Diags for MIU Modems and RS485 (0049 - 0002 - 010A) Page 2 of 16 3. MIU'S LED, SWITCH & SERIAL CONNECTOR SPECIFICATIONS The CIU/485 communicates with industrial controllers through RS - 485 compatible serial signaling. The RS - 485 signal levels ar e used to interconnect with RS - 485 compatible embedded controllers. The RS [...]

  • Page 5

    Install Op and Diags for MIU Modems and RS485 (0049 - 0002 - 010A) Page 3 of 16 3.5 MIU/485 B switch (external) SB - 1 Closed (ON) RS485 Received RX & /RX DC terminated with SB - 2 Closed SB - 1 Open (OFF) RS485 Received RX & /RX AC terminated with SB - 2 Closed SB - 2 Closed (ON) RS485 Received RX & /RX terminated SB - 2 Open (OFF) RS4[...]

  • Page 6

    Install Op and Diags for MIU Modems and RS485 (0049 - 0002 - 010A) Page 4 of 16 4. POWER SUPPLY SPECIFICATIONS The MIUXXX/485 contains a low quiescent power regulator. TheMIUXXX/485 also has a "low power" standby mode which minimizes overall power requirements when the MIUXXX/485 is used intermittently. 4.1 Power Supply Selection (MIU) Th[...]

  • Page 7

    Install Op and Diags for MIU Modems and RS485 (0049 - 0002 - 010A) Page 5 of 16 5. RS485 SPECIFICATIONS MIUXXXX/485 are low - power Transceiver for RS485 and RS422 communication Features: Point to Point or Multidrop/Multipolling Full or Half Duplex Drivers are short - circuit current limited & protected against excessive power dissipation (shut[...]

  • Page 8

    Install Op and Diags for MIU Modems and RS485 (0049 - 0002 - 010A) Page 6 of 16 Operating Temperatures - 40 to 85 o C Storage Temperature - 55 to 100 o C Relative Humidity 0 to 95% is non - condensing. Altitude 20 ,000 ft (operating), 40,000 ft (shipping). Vibration Effect Withstand 10 to 500 Hz at 1 g on any axis per SAMA PMC - 31 - 1 without dama[...]

  • Page 9

    CIU Installation, Operation & Diagnostics Edition: June 17 , 2003 SHEET TWO MIUXXX 485 Power Connection RJ11 Leased Line Port LED 1 Earth/Digital Ground (Jump pins if req’d) DB9 Data Port Power Connector Power In MIU (48 to 220VAC/DC (AC or DC) non-polarized Earth Gnd Power In MIU-LV (9 to 36VDC) Positive Voltage In Power Ground Earth Gnd L[...]

  • Page 10

    CIU Installation, Operation & Diagnostics Edition: June 17 , 2003 SHEET TWO B Point-to-Point, 4-Wire: Set Switches B-3 & B-4 DOWN(OFF) Point-to-Point, 2-Wire: Set Switches B-3 & B-4 UP(ON) Line Terminate DC : Set Switches B-1 & B-2 UP(ON) Line Terminate AC : set Switches B-2 UP(ON) For LoopBack Test mode : Set Switches B-3 & B-4[...]

  • Page 11

    MIUXXX/4 85 Installation, Operation & Diagnostics Edition: June 17 , 2003 Page A - 1 APPENDIX A. CONNECTOR PIN DEFINITIONS CONNECTOR P2 : RS - 232 Configuration Connector (DB9) MIU DCD 1 data carrier detect from MIUXXX 485 RD 2 receive data from MIUXXX 485 TD 3 transmit data to MIUXXX 485 DTR 4 data terminal ready to MIUXXX 485 GND 5 gr[...]

  • Page 12

    CIU Installation, Operation & Diagnostics Edition: June 17 , 2003 Page C - 1 APPENDIX B. SETUP CONFIGURATION In order to configure the MIUXXX/485 to remote RTU, Meter or Sc ada terminals the following setup is required for 2w or 4w (RS485) networks See Fig ONE for MIUXXXX/485 layout and dip switch setting Final Factory Configuration (MIUXXXX/48[...]

  • Page 13

    CIU Installation, Operation & Diagnostics Edition: June 17 , 2003 Page C - 1 1:AT Command (MIU2400/485) (Dial) configuration is: AT E0Q1&C1&D0S0=1&W0 E0 Echo Command disables (no "AT" response to terminal) Q1 Result Codes disable (no result codes return to terminal ring) S0=1 Auto Answer active (first ring modem will go OF[...]

  • Page 14

    CIU Installation, Operation & Diagnostics Edition: June 17 , 2003 Page C - 1 &Z3=XX Password to exit security mode &C1 Carrier Detect is always True (MIU LED will be ON all the time wh en Carrier Detect is ON. &D0 DTR is ignored &K0 No flow control 4: AT Command (MIU9.6L/485) Lease Line ATE0Q1&C1&D0&K0&Q6 M0 [...]

  • Page 15

    CIU Installation, Operation & Diagnostics Edition: June 17 , 2003 Page C - 1 SB - 1 Closed(ON) DC Terminated SB - 2 Closed (ON) Line Termination SB - 3 & - 4 Open (OFF) 4 - wire SA - 1 Open (OFF) RTS follows CTS no delay SA - 2 Open (OFF) SA - 3 Closed (ON) RTS (always ON by MIU internal J7 (1/2) setting) enables TxEN) SA - 4 Open (OFF) TxD[...]

  • Page 16

    CIU Installation, Operation & Diagnostics Edition: June 17 , 2003 Page C - 1 To test RS485 module set switch SB - 3 & - 4 Closed (ON) to loopback data to the host modem. This test is for RS485 2 - wire and 4 - wire configurati ons. Connect MIUXXXX/485 TXY (+) and TXZ ( - ) to the embedded controller RS485 DIAGNOSTICS RS485 CONNECTION FAILUR[...]