Industrial synchronous & asynchronous short range modem (14 pages)
Summary of Contents for Patton electronics 1088/C
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USER MANUAL MODEL 1088/C and 1088/D mDSL Modem with V.35 or X.21 Interface Part# 07M1088-UM SALES OFFICE Doc# 03312U2-001 (301) 975-1000 Rev. E TECHNICAL SUPPORT Revised 10/23/06 (301) 975-1007 An ISO-9001Certified Company...
Connecting the Model 1088/C (V.35) Serial Interface ....13 Connecting the Model 1088/C (V.35) to a “DTE” Device.... 13 Connecting the Model 1088/C (V.35) to a “DCE” Device ... 14 Connecting the Model 1088/D (X.21) Serial Interface ....14 Connecting the Model 1088/D (X.21) to a “DCE” or “DTE”...
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A.13 Line Interface ................28 A.14 mDSL Physical Connection ............28 A.15 Environment ................28 Factory Replacement Parts and Accessories......29 Model 1088/C Interface Pin Assignments....... 30 Model 1088/D Interface Pin Assignments....... 31 Model 1088/C and 1088/D Transmission distance chart ..32...
1.0 WARRANTY INFORMATION Patton Electronics warrants all Model 1088 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.
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 Materi- als Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Services at: •...
LAN to LAN interconnection, and WAN access networks over 3.6 miles/5.8 km (1.054 Mbps on 24AWG/.5 mm wire). Model 1088/C provides a V.35 interface on an M/34 female connector. Model 1088/D provides an X.21 interface on a DB-15 female connector. Features include loopback diagnostics, SNMP/HTTP remote management capabilities using NetLink Plug-and-Play and inband externally accessible configuration...
3.0 CONFIGURATION The Model 1088 is equipped with two sets of eight DIP switches, which allow configuration of the unit for a wide variety of applications. This section describes switch locations and explains all possible configurations. 3.1 CONFIGURING THE HARDWARE DIP SWITCHES The 16 external switches are grouped into two eight-switch sets, and are externally accessible from the underside of the Model 1088 (See Figure 1).
Reserved Switch S2-8: Enable/Disable Loop Tests from DTE. Switch S2-8 may be used to allow Model 1088/C to enter loopback diagnostic tests (Local or Remote) when the V.35 DTE raises the appropriate loop request pin (LLB: Pin L or RDL: Pin N). When Switch S2-8 is in the On position, the Model 1088/C will enter Local Loopback or Remote Loopback at the request of the DTE.
1088/C ignores DTE loop requests. In the Off position, loop requests may still be initiated by the front panel switch. S2-8 Setting DTE Loopback Request Enabled DTE Loopback Request Disabled Configuration Switch Set “S3” Use the six DIP Switches in Switch S3 to enable the DTE bit rate. The following table summarizes default positions of DIP Switch S3.
S3-1 S3-2 S3-3 S3-4 S3-5 S3-6 DTE Rate (kbps) 1024 1088 1152 1216 1280 1344 1408 1472 1536 1600 1664 1728 1792 1856 1920 1984 2048 2112 2176 2240 2304 Note Based on the DTE rate chosen, the Model 1088 will automati- cally select the optimum line rate depending on distance and line conditionsfor the distance.
Switch S3-8: Transmit Data (TD) Sampling Point. Switch 3-8 controls the Transmit Data (TD) sampling point. S3-8 Setting Description Normal TD sampled on the falling edge of the 1088 Trans- mit Clock (TC) Invert TD sampled on the rising edge of the 1088 Transmit Clock.
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When the CO and CP units connect over DSL, the CP will enter a pre- defined default configuration (Receive Recovered Clocking). During the negotiation process between the units, the CO unit will configure the DTE rate/line rate on the CP unit as defined by the settings of the CO unit.
The Model 1088/C provides a V.35 DCE (Data Circuit Terminating Equip- ment) interface on an M/34 female connector. As a DCE, this interface is designed to connect to DTE equipment, such as a router. When connect- ing the V.35 interface of the Model 1088/C to your DTE device, use a...
Figure 5. Connecting the Model 1088/C to V.35 Serial DTE Connecting the Model 1088/C (V.35) to a “DCE” Device The Model 1088/C provides a V.35 DCE (Data Circuit Terminating Equip- ment) interface on an M/34 female connector. As a DCE, this interface is designed to connect to DTE equipment, such as a router.
DTE (Data Terminal Equipment) for connection to DCE such as a modem or multiplexer. When connecting the X.21 interface of the Model 1088/C to your DTE device, use a X.21 straight through cable (See Figure 7). DSL Span...
The DCE/DTE strap is located on the top side of the 1088/D pc board (See Figure 9, below). The arrows on the top of the strap indicate the configuration of the X.21 port (for example, if the DCE arrows are point- ing toward the DB-15 connector, the X.21 port is wired as a DCE).
120 VAC Power (US) The 100–132 VAC adapter supplied with the U.S. version of the Model 1088 is a wall mount type and may be plugged into any approved 120 VAC wall jack. 230 VAC Power (International) The 230 VAC adapter supplied with the International version of the Model 1088 is a wall mount type and may be plugged into any approved 230 VAC wall jack.
5.0 OPERATION Once the Model 1088 is properly configured and installed, it should oper- ate 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 1088, first be sure that you have read sec- tion 4.4, “Connecting Power”...
• Only at power up, blinks once every 200 ms if the DTE Rate is set to an unsupported settings Glows yellow to indicate that the Model 1095 has been placed in Test Mode. The unit can be placed in test mode by the local user or by the remote user.
Overview Figure 13 shows the major elements used in the loop-back and pattern tests available in the Model 1088. Each block has several functions. Fol- lowing Figure 13 are descriptions that show how the elements are used during Test Modes. Pattern Pattern Loop...
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lish a connection after the framer begins seeing unframed pack- ets. The Test Model Timing Chart below shows the amount of time the framer must see consecutive unframed packets before the unit will restart and try to establish a new line connection. The reason that there are different Restart Times will become apparent after reading the rest of the document.
5.4 LOOPS AND PATTERNS The following section describes the Test Modes used in the Model 1088. At the bottom of each Test Mode, a figure is included to show the data path.. Pattern Loop Loop Pattern Framer Framer Line Gen/Det Gen/Det Contr Contro...
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data presented at the far end DTE will be transmitted to the local DTE and then looped back within the local DTE Loop Con- trol block with the Processor. After the Local Loop is deselected, the units will be placed back into DataMode and the normal data paths will be re-established.
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DTE are not valid. Because the data is unframed there is no way for the framer to send this data out to the DTE. This is an important distinction because other Patton units will send out the 511 pattern. When the unit is placed into a Mode 2 Local Loop, the 511/511E pattern generator on the local unit is unavailable for transmis- sion.
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Pattern Loop Loop Framer Pattern Framer Line Contro Gen/Det Contr Gen/Det Processor Processor Figure 19. Block Remote Loop with 511/511E Remote Digital Loop with 511/511E The Remote Digital Loop with 511/511E is shown above. After RDL is established the Remote units' Restart Timer is set to one minute.
units enable the 511/511E pattern within 4 seconds of each other, both units will be transmitting and receiving the 511/511E pattern. Both framers are now receiving unframed data and will restart after one minute. The 511/511E pattern generators will TimeOut after 45 seconds re-enabling the normal data path. The ER led will begin flashing until the user terminates the test.
A.8 POWER +5 VDC external desk top power supply, 90-260VAC, 50-60 Hz (Univer- sal Input), 10W or -48 VDC A.9 COMPLIANCE FCC Part 15, CE, CTR1 A.10 TRANSMISSION LINE Single Twisted Pair A.11 LINE CODING CAP (Carrierless Amplitude and Phase Modulation A.12 LINE RATES (DSL LINE) 144, 272, 400, 528, 784, 1040, 1552, 2064, 2320 kpbs A.13 LINE INTERFACE...
APPENDIX B FACTORY REPLACEMENT PARTS AND ACCESSORIES Model # Description 1088/C V.35 mDSL Rocket (CAP) 1088/D X.21 mDSL Rocket (CAP) 080551 120V Power Supply 080552 230V Power Supply 48V-PSM DC Power Supply Module 08055DCUI 100-240VAC (+5V ±5% reg. DC/2A) Universal Input Adapter 0805EUR European Power Cord CEE 7 (“A”)
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