TABLE OF CONTENTS 1. STANDARDS... 2 2. PRODUCT OVERVIEW ... 3 3. GENERAL PRODUCT SPECIFICATIONS ... 4 4. MODEM SPECIFICATIONS ... 5 5. ANALOG LINE SPECIFICATIONS ... 7 6. ANALOG MICROWAVE INTERFACE... 8 7. POWER CONNECTIONS... 10 8. SERIAL DATA PORT PIN-OUT ... 11 9.
Internally, the MIU202T consists of a baseboard and a communication module. The baseboard includes the power supply regulation and surge protection. The communication module is a Telenetics™ Pony Express™ PE202T-S Modem Module. The MIU202T is packaged specifically for the harsh environments found in utility substations and industrial facilities.
3. GENERAL PRODUCT SPECIFICATIONS Dimensions: Weight: Voltage Supply: Standard Model: LV Model (Suffix “-LV”): Current Requirements: 12VDC 24VDC 65mA 27mA Surge Protection: Power Supply: Analog Line: Digital Line: Operating Temperature: Operating Humidity: Storage Temperature: MIU202T-S Installation, Operation & Diagnostics Edition: March 16, 1999 Page 4 5.3 x 4.0 x 1.375 inches 1 lb 40 to 270VDC...
MODEM SPECIFICATIONS Modulation: Modulation Type: Synch/Async: Data Rate: Transmit Frequency: Error Correction: Data Compression: Data Modulation Connectivity: 99.999% or better at -37dBm 99.5% or better at -40dBm 95% or better at -43dBm Serial Formats and Flow Control: Synchronous or Asynchronous and RTS/CTS flow control Analog Interface Tx Output Level: Rx Sensitivity:...
Page 8
Other Features Receiver Equalization: Self Test Diagnostics: Local Analog Loopback: Local Digital Loopback: Remote Analog Loopback Remote Digital Loopback Anti-Streaming: RTS/CTS delay: Constant Carrier Soft Carrier Turn Off Carrier Turn ON/OFF * Dip Switch Selectable ~ See Section 9 MIU202T-S Installation, Operation & Diagnostics Edition: March 16, 1999 Page 6 Compromise Equalization None See Section 13...
5. ANALOG LINE SPECIFICATIONS The MIU202T contains analog circuitry for connection to the public conditioned or unconditioned, Bell type 3002, 2 or 4-wire, full duplex voice grade leased lines or metallic lines (eg; pilot wires). The MIU202T will also interface to Power Line Carrier or Microwave radio voice channel networks.
6. ANALOG MICROWAVE INTERFACE The MIU202Tis designed to interface to a Microwave radio voice channel network with the following specifications: Phase Jitter (10 to 300Hz)1 degree peak-to-peak, max. Frequency Response: Frequency Stability: Level Stability (w/o regulation): + 0.5 dB (6 months) Harmonic Distortion: Absolute Delay: Group Delay (option - 001):...
Page 11
Crosstalk (unintelligible): Adjacent channel Intra-channel Out of Band Signalling: MIU202T-S Installation, Operation & Diagnostics Edition: March 16, 1999 Page 9 28dBrnc0 maximum (24 455B weighted noise at 0 dBmO dBrnc0 typical). 28 dBrnc0, maximum (18 dBrnc0, typical) (1KHz test tone at 0 dBmO) Frequency 3825 Hz Level -20 dBmO Pulse speed (30 to 80% break) 8 to 14 pps...
9. DIP SWITCH FUNCTIONS IMPORTANT NOTE: Invert modem to view dip switches as shown above Table 1 Switch Function Switch 1 Transmit Analog (TxA) Signal Level Switch 2 Anti-Streaming Switch 3 Received Analog (RxA) Signal Level Switch 4 RTS/CTS Delay Switch 5 RTS/CTS Delay Switch 6...
Page 15
Table 2: RTS/CTS Delay Time Switched Carrier Wire Wire MIU202T-S Installation, Operation & Diagnostics Edition: March 16, 1999 Page 13 Constant Switch Switch Carrier Switch 9 RTS/CTS Soft Delay Carrier Time 50 ms 50 ms 50 ms 50 ms 35 ms 35 ms 35 ms 35 ms...
10. MODEM CONFIGURATION The following table provides the Dip Switch settings required for most modem application configurations: 4-Wire Point-to-Point 4-Wire Multi-Point Master 4-Wire Multi-Point Slave Rx Term. OFF 4-Wire Multi-Point Slave Rx Term. ON 2-Wire Point-to-Point 2-Wire Multi-Point Master Line Term. ON 2-Wire Multi-Point Slave...
DIAGNOSTICS The following pages provide hardware techniques for diagnosing communication problems and thereby isolating the problem at the local modem, the remote modem or the interconnecting line. (a) LOCAL ANALOG LOOPBACK (Figure 2) Requires a loop back cable with a built-in circuit for line loss to simulate a typical leased line condition (See Figure 3).
Page 20
Set Dip Switch 1 OFF (TxA = -10dBm) and Dip Switch 3 OFF (RxA = -43dBm). CD will be ON. Run a test message at TxD and verify that the same message is received at RxD with no data errors. Test 4: Repeat Test 3 for various RTS/CTS delay times and with soft carrier ON and OFF.
Page 21
(c) REMOTE DIGITAL LOOPBACK – 4/Wire Network (Figure 5) Configure both the local and remote modems as follows: Switch 1 = ON (TxA = 0dBm) Switch 3 = ON (RxA = -33dBm) Switch 4 = OFF (RTS/CTS = 35ms) Switch 5 = ON (RTS/CTS = 35ms) Switch 6 = ON (Constant Carrier mode).
Page 22
(d) LINE DIAGNOSTICS (i) Typical modem configuration for 4-wire Point-to-Point system… Switch 1 = ON (TxA = 0dBm) Switch 3 = ON (RxA = -33dBm) Switch 4 = OFF (RTS/CTS = 1ms) Switch 5 = OFF (RTS/CTS = 1ms) Switch 6 = ON (Constant Carrier mode). Switch 7 = OFF (4-Wire) Switch 8 = ON (Line Termination = 600 ohms) Switch 9 = OFF (Soft Carrier = OFF)
Need help?
Do you have a question about the 202T-S and is the answer not in the manual?
Questions and answers