USER MANUAL MODEL 1082/F iDSL Modem with G.703 Interface CERTIFIED An ISO-9001 Certified Company Part# 07M1082F-UM Doc# 03317U2-001 Rev.
TABLE OF CONTENTS 1.0 1.1 1.2 1.3 Warranty Information ................................................................. FCC Information ........................................................................... CE Notice...................................................................................... Service.......................................................................................... 2.0 2.1 2.2 2.3 General Information...................................................................
A.5 A.6 A.7 A.8 A.9 A.10 A.11 A.12 A.13 A.14 A.15 A.16 A.17 A.18 A.19 A.20 A.21 A.22 A.23 A.24 DSL Distance .............................................................................. 24 G.703 Distance ........................................................................... 24 A.7 Connector ............................................................................. 24 Operating Modes/speed ............................................................. 24 Line Coding .................................
1.0 WARRANTY INFORMATION Patton Electronics warrants all Model 1082/F components to be free from defects, and will—at our option—repair or replace the product should it fail within one year from the first date of shipment. This warranty is limited to defects in workmanship or materials, and does not cover customer damage, abuse or unauthorized modification. If this product fails or does not perform as warranted, your sole recourse shall be repair or replacement as described above.
1.3 SERVICE All warranty and non-warranty repairs must be returned freight prepaid and insured to Patton Electronics. All returns must have a Return Materials Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Service at: Tel: (301) 975-1007 E-mail: support@patton.com URL: www.patton.com Note Packages received without an RMA number will not be accepted.
2.0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and is warranted for One Year parts and labor. If any questions or problems arise during installation or use of this product, please do not hesitate to contact Patton Electronics Technical Support at (301) 975-1007. 2.1 FEATURES • 64 kbps synchronous data rate • Provides 64K co-directional interface compliant with G.703 electrical specs.
clear channel timing (without byte integrity preservation) over the modem link. The 1082/F is capable of handling either network timing or modem timing, thereby realizing network extension or network replacement configurations. Clock jitter is attenuated according to G.823. The Model 1082 is capable of point-to-point distances up to 5 miles using 24 AWG wire. The Model 1082 supports internal, external or receive loopback clocking. 2.
Applications and Associated Timing There are two typical applications that result in two different timing modes for the G.703 interface. These are described in the following sections. Timing of Application 1: Network Loop Extension. In this application, the network supplies the timing for the entire system. The first G.703 recovers the timing. It has to smooth the clock before it supplies the clock (XCLK1) and the data (TXD1) to the first modem transmitter, so it can directly use the clock.
The first G.703 interface is in Network Timed mode. The second is in Recover Clock mode. See Figure 2. G.703 TX SMOOTHS RX MODEM CLOCK G.703 INTFMODEM TIMED MODE RX TX FIFO RX FIFO G.703 TX CSU DTE HOST MODEM RECOVERED TIMING RX TX SECOND MODEM RX TX FIFO RX RX FIFO TX G.703 TX 2 or 4 Wire SMOOTHED NETWORK FIRST MODEM G.703 INTERFACE NETWORK TIMED MODE HOST MODEM INTERFACE (EXTERNAL) TIMING Figure 2. Network Loop Extension Configuration Timing of Application 2: Network Replacement.
The first G.703 modem is in Internal Clock mode. The second modem is in Receive Recover mode. See Figure 3. G.703 TX SMOOTHS RX MODEM CLOCK G.703 INTFMODEM TIMED MODE HOST MODEM RECOVERED TIMING TX FIFO RX RX FIFO TX RX G.703 TX CSU DTE SECOND MODEM G.703 TX SMOOTHS RX MODEM CLOCK RX TX FIFO RX RX FIFO TX G.703 2 Wire TX SMOOTHED CSU DTE G.703 INTF- FIRST MODEM MODEM TIMED MODE HOST MODEM INTERNAL TIMING Figure 3. Network Replacement Configuration 2.
In both cases, the transmitter uses the smoothed clock. 2.6 OPERATING MODE SELECTIONS There are two data modes in which the interface passes data and timing: • Octet Mode—This mode preserves the byte integrity associated with Octet timing. The Octet timing frame is embedded in the data. Note Octet timing mode is supported only when two 1082/F modems are connected to each other. It is not supported when the 1082/F modem is used with the 1092A or 1092ARC modems from Patton.
3.0 CONFIGURATION The Model 1082/F is equipped with 8 DIP switches that enable configuration of the unit for a variety of applications. This section describes switch locations and explains the different configurations. 3.1 CONFIGURING THE HARDWARE DIP SWITCHES Using a small flat-tip screwdriver, remove the protective cover located on the underside of the Model 1082 (see Figure 4). DS L G.
S1 S1 1 2 3 4 5 6 7 8 ON 1 2 3 O N 4 5 S1 6 7 8 Switch toggle S1 Push toggle up for OFF position 1 2 3 4 5 6 7 8 ON Push toggle down for ON position Figure 5. DIP switches Figure 5 shows the orientation of the DIP switches in the “ON” and “OFF” positions. Configuring DIP Switch S1 DIP switch S1 is where you configure the units for Octet or clear channel timing, enabling or disabling the front panel switches, SNMP control enable or disable, Clock mode, and RDL enable or disable.
SW1-1 Octet Function. This switch determines whether the modem will be set for clear channel mode or Octet timing. The 1082/F can be used with either another 1082/F, a 1092A/F or a 1092ARC/C/OO modem from Patton. However, when used in Octet timing mode, the 1082/F must be used with another 1082/F. OFF ON Octet Aligned Clear Channel SW1-2 Hardware/Software. When the Model 1082/F is placed into SNMP mode (switch SW1-4) the modem must be set to determine what will control the modem.
SW1-6/7 Clock Mode. Use Switches S1-6 and S1-7 to configure the 1082 or Model 1082/144 for internal, or receive recover clock mode. S1-6 S1-7 Description ON ON OFF OFF ON OFF ON OFF Internal clock (DEFAULT) Recover clock Network clock Hardware/software reset Note Placing SW1-6 and SW1-7 in the OFF mode performs reset of the hardware/software. SW1-8 RDL Function. Use Switch S1-8 to allow Model 1082/F to enter the Remote Digital Loopback diagnostic test when requested to do so by the far end Modem.
4.0 INSTALLATION Once the Model 1082 has been configured, it is ready to connect to the twisted pair interface, to the 64K co directional interface, and to the power source. This section tells you how to make these connections. 64 kbps coLine interface directional interface ON Made in the USA | Power OFF O Interface Line Power input connector Po we r 5M1 a1dE e in th In e te US A rf ac e Li ne Figure 6. Model 1082/F Rear View 4.
The RJ-45 connector on the Model 1082’s twisted pair interface is polarity insensitive and is wired for a two-wire interface. The signal/pin relationships are shown in Figure 7. 1 (N/C) 2 (N/C) 3 (N/C) 4 (2-Wire TIP) 5 (2-Wire RING) 6 (N/C) 7 (N/C) 8 (N/C) 1 2 3 4 5 6 7 8 Figure 7. Model 1082 twisted Pair line interface The RJ-45 connector for connection to the 64 kbps co-directional interface is pre-wired according to the signal/pin relationships shown in Figure 8.
Important Connection of the Patton 1082/F to a CSU DTE requires a crossover twisted pair cable. Connection of the 1082/F to a PCM network requires a straight through twisted pair cable. If you need more assistance with cable selection and preparation, contact Patton Technical Support at (301) 975-1007. Additional assistance at our website, http://www.patton.com, or at our e-mail address at support@patton.com 4.
z There are no user-serviceable parts in the power supply section of the Model 1082. Fuse replacement should only be performed by qualified service personnel. Contact Patton Electronics Technical support at +1 (301) 975-1007, via our web site at www.patton.com, or by E-mail at support@patton.com, for more information.
5.0 OPERATION Once the Model 1082 is properly configured and installed, it should operate transparently. This sections describes power-up, reading the LED status monitors, and using the built-in loopback test modes. 5.1 POWER-UP To apply power to the Model 1082, first be sure that you have read “Connecting Power” on page 18, and that the unit is connected to the appropriate power source. Then power-up the unit. 5.
5.3 TEST MODES The Model 1082 offers two proprietary loopback test modes, plus a builtin V.52 BER test pattern generator, to evaluate the condition of the modems and the communication link. These tests can be activated physically from the front panel, or via the interface. Local Line Loopback (LLB) The Local Line Loopback (LLB) test checks the operation of the local Model 1082, and is performed separately on each unit.
Remote Digital Loopback (RDL) The Remote Digital Loopback (RDL) test checks the performance of both the local and remote Model 1082s, and the communication link between them. Any characters sent to the remote Model 1082 in this test mode will be returned back to the originating device (see Figure 12). For example, characters typed on the keyboard of the local terminal will appear on the local terminal screen after having been passed to the remote Model 1082 and looped back.
Using the V.52 (BER) test pattern generator To use the V.52 BER tests in conjunction with the Remote Digital Loopback tests (or with Local Line Loopback tests), do the following: 1. Locate the 511/511E toggle switch on the front panel of the Model 1082 and set the toggle to the down position. This activates the V.52 BER test mode and transmits a 511 test pattern into the loop. If any errors are present, the local modem’s red ER LED will blink continuously. 2.
APPENDIX A MODEL 1082 SPECIFICATIONS A.1 APPLICATIONS 64K G.703 co directional PCM network extension or network replacement A.2 TRANSMISSION FORMAT Synchronous A.3 TRANSMISSION LINE Single unconditioned twisted pair A.4 CLOCKING Internal, external or receive loopback A.5 DSL DISTANCE • 10.1 miles (16.4km) on 19 AWG (0.9mm) wire • 7.2 miles (11.5 km) on 22 AWG (0.64mm) wire • 5.0 miles (8 km) on 24 AWG (0.5mm) wire • 3.4 miles (5.5 km) on 26 AWG (0.4mm) wire A.6 G.703 DISTANCE 1 mile (1.
A.10 TIMING MODES Supports network timing mode or modem timing mode A.11 TRANSMIT LEVEL 2.0V differential, into 100 Ohms, nominal A.12 LOAD IMPEDANCE 120 Ohms A.13 INPUT SIGNAL LEVEL 0 to -10dB A.14 JITTER PERFORMANCE CTR 14, G.823. <0.05UI jitter for network extension applications A.15 ISOLOATION 2000 VRMS isolation, transformer coupled A.16 COMPLIANCE • FCC Class A • EN 50081-1, Emissions • EN 50082-1, Susceptibility • Designed for compliance with CTR 14 A.17 LED STATUS INDICATORS G.
A.20 ALTITUDE 0–15,000 feet (0–4,572 meters) A.21 HUMIDITY 5 to 95%, non-condensing A.22 DIMENSIONS 4.125W x 1.625H x 6.0D in. (10.5W x 4.1W x 15.2D cm) A.23 WEIGHT 2.01 lbs. (1.0kg) A.
APPENDIX B MODEL 1082 FACTORY REPLACEMENT PARTS AND ACCESSORIES Model # Description 48V-PSM 08055DCUI DC Power Supply Module 100-240VAC (+5V ±5% reg.
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