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Section 319–29E–202
Equipment Issue 2
Charles Industries, Ltd. Third Printing, June 1999
STS 3192–9E Powering T1 Network Interface Unit (NIU)
CLEI Code: T1STETT1AA
Recognized under Underwriters Laboratories Standard 1459, Second Edition*
CONTENTS PAGE
Part 1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Part 2. APPLICATION ENGINEERING . . . . . . . . . . . . . . . . . . . .
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Section 319–29E–202 1. GENERAL 1.1 Document Purpose This document provides general, circuit, and testing information for the Charles Industries Span Termination Sys- tem (STS) 3192–9E Powering T1 Network Interface Unit (NIU), shown in Figure 1. The 3192–9E is a member of the Charles Industries STS–3192 family of high density span termination equipment. For additional information on the STS–3192 System, see sections 319–211–100 and 319–211–200. 1.2 Document Status This practice is reprinted to co
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Section 319-29E-202 2. APPLICATION ENGINEERING The 3192–9E is ideally suited for use in provisioning T1 High Capacity Digital Service (HCDS) from lightwave-fed building Remote Terminals located at customer premise locations. See Figure 2 for a typical application. The 3192–9E, used as adjunct equipment to the Lightwave Multiplexer, provides transmission loopback for mainte- nance activities. In addition, the 3192–9E can be optioned to provide a 60mA constant current power source to- wards the ne
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Section 319–29E–202 The 3192–9E input current is highly dependent on application. Those applications that require the 3192–9E to power a customer’s CSU will require a greater input current. Table 1 shows input current and heat release versus the equivalent series simplex resistance (at 60mA) present on the CI side of the unit. Table 1. 3192–9E Power Consumption and Heat Release Typical Application Option S1 Equivalent –42.5 Volt 48.0 Volt Bat- 56.0 Volt Bat- Position External Battery tery tery
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Section 319-29E-202 LIGHTWAVE CPE NET LOS MULTIPLEXER EQUIPMENT CSU NETWORK NETWORK AIS INTERFACE SIGNAL GENERATOR DETECTOR DSX STEADY = LOS FLASH = AIS F SURGE 7.5 7.5 LB A PROTEC TION ESF 1 6 XMT LBO BUFFER S4 AMP LOOPBACK CODE - DETECTOR LB PWR XMT MON RPT + CONTROL LP + LOGIC XMT ASPR SC CI 0-96V Network S1 LB Side Side RCV - LOOPDOWN CONTROL + MON RPT RCV S2 4K -48V MLB - 100 SIGNAL REGEN K LB SURGE B LB DSX PROTEC TION PREEQ 2 9 LB FA 10 DISABLE DISABLE DISABLE CUSTOMER AIS ENABLE INTE
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Section 319–29E–202 PWRG T1 7.5 7.5 NIU O 1 2 N 3192-9E FA NET S4 LOS CI LOS LB ESF A LOS I R ALM S P T R 12 C M V O N DISABLE S3 0.6V PWR LP SC S1 R P X T M M T O N MLB S2 WESCOM 91-31929E ISS. 2 Figure 6. 3192–9E Front Panel Features and Options Location Table 2. 3192–9E Front Panel Options Description Feature/Option Location Description Function FA (Fuse Alarm) Front Panel Red LED Indicates that the internal fuse on the 3192-9E has opened. The internal fuse is not field replaceable. NET L
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Section 319-29E-202 3.1 Signal Transmission Paths In the idle (Looped down) mode, the signal from the network is coupled to the unit and routed through the trans- mit pad circuit. Switch S4 mounted on the circuit pack is used to adjust the transmit pad which consists of two cascaded 7.5dB sections, allowing transmit path losses of 0, 7.5 and 15dB. The signal from the customer is routed through the receive side of the 3192–9E. This side contains a signal re- generator with a wide range ALBO, acco
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Section 319–29E–202 3.5 Transmit And Receive Signal Detectors The 3192–9E provides Monitoring Signal Detectors on the transmission paths. These detectors provide a mainte- nance aid for installation and troubleshooting. 3.6 Network Side Signal Detector This detector monitors the unit’s transmit path and looks for signal activity from the network. When a LOS (Loss Of Signal) is detected, as indicated by receipt of 175 +75 consecutive zeros, it will illuminate the front panel NET LOS LED. When an
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Section 319-29E-202 4. INSPECTION Inspect the equipment thoroughly upon delivery. If the equipment has been damaged in transit, immediately re- port the extent of damage to the transportation company. Wescom equipment is identified by a model and issue number imprinted on the front panel or located elsewhere on the equipment. Each time a major engineering design change is made on the equipment, the issue number is advanced by one number on any subsequent models that are manufactured. Therefore,
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Section 319–29E–202 6.2 S2 — Front Panel MLB Push Button S2 is a recessed, front-panel push-button switch used to manually activate or deactivate loopback. Momentarily depress the MLB (Manual Loopback) push-button switch to activate or deactivate a loopback condition. 6.3 S3 — LOS ALM and AIS Enable/Disable S3 is a two-section dip switch that interacts with the transmit and receive signal detectors on the 3192–9E. 6.3.1. S3–1 — LOS ALM S3–1 is used to enable or disable sending a LOS (Loss of Sig
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Section 319-29E-202 Step Action Action 8. Momentarily operate the 3192–9E front panel MLB The 3192–9E front panel LB LED should light indi- pushbutton switch. cating that the unit is in Loopback and the TBERD-209 should be receiving the looped back QRSS pattern. 9. Momentarily operate the 3192–9E front panel MLB The 3192–9E front panel LB LED should extin- push-button switch. guish and the TBERD-209 shows no signal. 10. Connect the TBERD-209 RCV to the Network In- The TBERD-209 should see the QR
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Section 319–29E–202 8. TECHNICAL ASSISTANCE 8.1 Technical Assistance — U.S. If technical assistance is required, contact Charles Industries’ Technical Services Center at: 847–806–8500 847–806–8556 (FAX) 800–607–8500 techserv@charlesindustries.com (e-mail) 8.2 Technical Assistance — Canada Canadian customers contact: 905–821–7673 (Main Office) 905–821–3280 (FAX) 9. WARRANTY & CUSTOMER SERVICE 9.1 Warranty Charles Industries, Ltd. offers an industry-leading, 5-year warranty on products manufacture
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Section 319-29E-202 2. Include the following information: – Company name and address – Contact name and phone number – Inventory of equipment being shipped – Particulars as to the nature of the failure – Return shipping address 3. Ship the equipment, purchase order, and above-listed information, transportation prepaid, to the ser- vice center address shown below. CI Service Center Route 40 East Casey, IL 62420–2054 4. Most repaired or replaced units will be returned within 30 or 45 days, dependi
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Section 319–29E–202 (c) ESF DATA LINK: The bit-oriented command and response message 0 001001 0 11111111 for 16 milli- seconds to loop up. The bit-oriented command and response message 0 010010 0 11111111 for 16 milliseconds to loop down. (d) LOOPBACK TIMEOUT: 20 Minutes 10.1.2. Power (a) INPUT: Voltage Requirements, –42.5 to 56Vdc; Current Requirements, see Table 1. 10.2 Physical Specifications The physical specifications of the 3192-9E are as follows: Table 4. Physical Specifications Feature
