Related Manuals for Telenetics MIU Dial or Leased Line modem with RS-485
Summary of Contents for Telenetics MIU Dial or Leased Line modem with RS-485
- 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...
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Page 2: Table Of Contents
1.PRODUCT OVERVIEW... Page 1 2.PRODUCT DESCRIPTION... Page 1 3 SERIAL CONNECTOR SPECIFICATIONS ... Page 2 4.POWER SUPPLY SPECIFICATIONS ... Page 4 5.RS485 SPECIFICATIONS ... Page 5 6.ENVIRONMENTAL SPECIFICATIONS... Page 6 7.APPROVALS ... Page 6 DRAWING - STANDALONE MODEMS ... Sheet 1 MIU/485 CONFIGURATIONS ... -
Page 3: Product Overview
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 make it particularly well suited for industrial applications. -
Page 4: Serial Connector Specifications
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 are used to interconnect with RS-485 compatible embedded controllers. The RS-232E signal levels are used to configure the CIU. The RS- 232E signal levels are also used to interconnect with RS-232E compatible embedded controllers if required. - Page 5 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) RS485 Received RX &...
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Page 6: Power Supply Specifications
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) The power supply is selected through the use of Power Connector P3 (MIU) Connector Type: Regulated Powe r Supply Range: 48.0 to 220 Volts AC/DC. -
Page 7: Rs485 Specifications
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 (shutdown will places the drivers in a high - impedance state). When Drivers are disabled (by TXD), impedance Note in two-wire or multi-drop/multi-polling networks TX enable by TXD... -
Page 8: Approvals
Operating Temperatures Storage Temperature Relative Humidity Altitude Vibration Effect ESD susceptibility EMI susceptibility EMI radiation 7. APPROVALS The CIU/485 meets the following approvals: Telephone: Emissions Environment Install Op and Diags for MIU Modems and RS485 (0049-0002-010A) -40 to 85 -55 to 100 0 to 95% is non-condensing. -
Page 9: Power Connection
MIUXXX\485 Power Connection RJ11 Leased Line Port LED ONE Blinking = POWER ON Steady = MODEM CONNECTED (CD) CIU Installation, Operation & Diagnostics 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... - Page 10 RS485 TX+ TX- RX+ RX- Connection 3 & 4 always UP. 1 UP, 2 DOWN when using DB9 for modem configuration. 1 DOWN, 2 UP ~ Modem connected to RS485. Do not connect data to DB9 4 3 2 1 4 3 2 4 3 2 1 4 3 2 1...
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Page 11: Connector Pin Definitions
CONNECTOR PIN DEFINITIONS APPENDIX A. CONNECTOR : RS-232 Configuration Connector (DB9) MIU data carrier detect receive data transmit data data terminal ready ground request to send clear to send ring indication PGND shield protective ground _______________________________________________________________________________ CONNECTOR : RS-485 Configuration Connector 4 Positions header with .138 spacing Interface to 4 positions Plug -in Terminal Block transmit data (+) -
Page 12: Appendix B:setup Configuration
APPENDIX B. SETUP CONFIGURATION In order to configure the MIUXXX/485 to remote RTU, Meter or Scada terminals the following setup is required for 2w or 4w (RS485) networks See Fig ONE for MIUXXXX/485 layout and dip switch setting Switch Three Switch Three Setting SW - One SW - Two... - Page 13 1:AT Command (MIU2400/485) (Dial) configuration is: ATE0Q1&C1&D0S0=1&W0 Echo Command disables (no "AT" response to terminal) Result Codes disable (no result codes return to terminal ring) S0=1 Auto Answer active (first ring modem will go OFF- Hook and start answer sequence) &C1 Carrier Detect is always True (MIU LED will be ON all the time when Carrier Detect is ON.
- Page 14 &Z3=XX Password to exit security mode &C1 Carrier Detect is always True (MIU LED will be ON all the time when Carrier Detect is ON. &D0 DTR is ignored &K0 No flow control AT Command (MIU9.6L/485) Lease Line ATE0Q1&C1&D0&K0&Q6\M0\H1W0 Echo Command disables (no "AT" response to terminal) Result Codes disable (no result codes return to terminal ring, Connect (XXX) &Q6 Normal mode (speed buffering)
- Page 15 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 will not disable RxD MIU S3 (external)
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Page 16: Appendix C:diagnostics
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 configurations. Connect MIUXXXX/485 TXY (+) and TXZ (-) to the embedded controller RS485 DIAGNOSTICS RS485...
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