Positron Teleline 751109/15 Description And Installation Download Page 50

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8-card Shelf CCC model 751109/15

To calculate the temperature inside the shelf

1. Photocopy and complete the following worksheet:

Table 9: Temperature Calculation Worksheet

Slot
No.

Model

Power
Consumption

Power
Dissipation

Max. Operating
Temperature

-24 Vdc

Internal
Power
Supply

25% of Total
power
consumption at
24 Vdc =

-48 Vdc

Internal
Power
Supply

25% of Total
power
consumption at
48 Vdc =

Total power
consumption =

Total power
dissipation =

Highest allowable
temperature =

Temperature inside the shelf

=(total power dissipation x shelf thermal resistance) + room temp.

Summary of Contents for Teleline 751109/15

Page 1: ...Teleline 8 card Shelf CCC model 751109 15 Description and Installation 925W751019 03E...

Page 2: ......

Page 3: ...ce and Support 8 Positron Contact Information 8 Technical Customer Support 8 Customer Training 9 Repair Service 9 1 5 Teleline Warranty 10 Limitation of Liability 10 Cancellation and Rescheduling Char...

Page 4: ...cable using the PIC stub 35 3 5 Power Connections 38 External Power Supply 38 To power the shelf via the Station cable 38 To power the shelf via the power cable 40 3 6 Internal Power Supply 41 Interna...

Page 5: ...Chapter 1 General Information...

Page 6: ...s mentioned herein may be trademarks and or registered trademarks of their respective companies Confidentiality Notice The information contained in this document is the property of Positron Inc Except...

Page 7: ...e to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expen...

Page 8: ...tact Information 1 4 2 Technical Customer Support Positron is committed to providing excellent ongoing technical support to its customers A team of specialists is always available for telephone consul...

Page 9: ...to Positron for repair warranty repair or replacement call the Repair department to obtain a Return Material Authorization RMA number Parts returned without RMA numbers cannot be accepted The RMA num...

Page 10: ...the equipment or any component thereof the customer s sole remedy shall be at Positron s option the repair or replacement of the equipment or said component Q For any other claim in any other way rel...

Page 11: ...NS AND WARRANTIES OF MERCHANTABILITY MERCHANTABLE QUALITY FITNESS FOR A PARTICULAR PURPOSE TITLE PERFORMANCE AND THOSE ARISING FROM STATUTE TO THE EXTENT PERMITTED BY LAW POSITRON DOES NOT WARRANT THA...

Page 12: ......

Page 13: ...Chapter 2 Overview...

Page 14: ...ave 24 Vdc and 48 Vdc The shelf is shipped with a Station cable stub for connection to communications equipment a Polyethylene Insulated Cable PIC stub for connection to the Central Office CO incoming...

Page 15: ...r from sprinklers Q When equipped with a Plug in Power Supply 751313MC 24 Vdc 751318MC 48 Vdc 751319MC 48 Vdc or 751316 24 Vdc the shelf can provide power to Station equipment through the Station cabl...

Page 16: ...16 8 card Shelf CCC model 751109 15 Figure 1 8 card Shelf CCC model 751109 15...

Page 17: ...color coded cable stubs Q 3 meter 10 CO and Station color coded cable stubs are provided with the shelf For a listing of the cable color coding for the CO and the Station sides refer to Table 2 on pa...

Page 18: ...1 5 BLUE RC TB2 4 BLUE RED RC TB2 5 4 7 RED T4 TB1 14 RED ORANGE T4 TB1 15 ORANGE R4 TB2 14 ORANGE RED R4 TB2 15 8 RED TD TB1 5 RED GREEN TD TB1 6 GREEN RD TB2 5 GREEN RED RD TB2 6 5 9 RED T5 TB1 13 R...

Page 19: ...GREEN YELLOW GND TB1 2 19 YELLOW YELLOW BROWN BROWN BROWN YELLOW 20 YELLOW YELLOW SLATE 24 Vdc TB2 1 SLATE SLATE YELLOW 24 Vdc TB2 1 21 VIOLET VIOLET BLUE BLUE BLUE VIOLET 22 VIOLET VIOLET ORANGE 48...

Page 20: ......

Page 21: ...Chapter 3 Installation...

Page 22: ...must be available connected to the Station ground grid CAUTION Q The equipment must be installed in a restricted area ATTENTION ELECTROSTATIC SENSITIVE DEVICES HANDLE ONLY AT STATIC SAFE WORKSTATION I...

Page 23: ...n a Ground Potential Rise GPR or transients are less likely to occur Q It is strictly forbidden to install any additional hardware inside the shelf or to drill any holes in its surface Doing so would...

Page 24: ...the contents of the shelf kit For a listing of the items included in the kit refer to Table 3 on page 25 4 To mount the shelf install a 2 5 cm 1 thick plywood backboard on the wall to provide the ins...

Page 25: ...r Supply Cable 1 207W000007 001 Drilling template 1 220 000040 201 Connector cord grip hub 2 cm 3 4 1 230 990400 025 Connector cord grip hub 1 3 cm 1 2 2 230 990400 036 Instruction sheet for strain re...

Page 26: ...d bar or ground rod using a 6 AWG wire green with yellow stripes The preferred length of this wire is 3 meters 10 feet or less The ground lug is the recommended method of grounding the shelf Q If a gr...

Page 27: ...the DC supply system earthing electrode conductor or to a bonding jumper from an earthing terminal bar or bus to which the DC supply system earthing electrode is connected Q This equipment must be lo...

Page 28: ...pply The 5 A 125 Vac fast blow replaceable fuse protects the internal power supply if installed from excessive currents or overvoltage When powered through an external source the requirements are Q 24...

Page 29: ...he power cord ground wire For an illustration of the ground strap settings refer to Figure 3 on page 30 CAUTION Q Teleline Plug in Power Supplies are CSA approved No other power supply can be used ins...

Page 30: ...30 8 card Shelf CCC model 751109 15 Figure 3 Ground Strap Settings...

Page 31: ...Shelf CCC model 751109 15 refer to Figure 4 Figure 4 Shelf CO and Station Cable Separation CAUTION Q The CO cable should be kept at least 15 cm 6 apart from the Station cable the ground wire and any...

Page 32: ...ck and connector refer to Figure 5 on page 33 4 Take the remainder of the strain relief gland nut chuck neoprene bushing and body and slide it up the cable from the free end outside the shelf to the s...

Page 33: ...33 Cable Connections Figure 5 Station Side Terminal Blocks...

Page 34: ...34 8 card Shelf CCC model 751109 15 Figure 6 Station Side Motherboard Interconnection Diagram...

Page 35: ...cable by holding the nut inside the shelf and tightening the grip by turning the gland nut 5 Connections between the PIC stub and the incoming CO cable can now be made according to the color coding of...

Page 36: ...INSTALLED VIEW FEMALE RECEPTACLES CO SIDE PCB MARKINGS TB2 TB1 TB2 1 RING 17 RMT GND RA RB RC RD RE R5 R4 R3 R2 R1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 RF RG RH R8 R7 R6 TB1 1 TIP 17 RMT GND TA T...

Page 37: ...1 J2 J3 J4 J5 J6 J7 J8 A 3 C 5 E 6 F A 3 C 5 E 6 F A 3 C 5 E 6 F A 3 C 5 E 6 F A 3 C 5 E 6 F A 3 C 5 E 6 F A 3 C 5 E 6 F A 3 C 5 E 6 F 17 2 16 3 15 4 5 14 13 6 12 7 11 8 10 9 1 TB2 TB1 E1 E2 E4 E3 E6...

Page 38: ...ne The unused strain relief should be blocked For an illustration of this type of external powering refer to Figure 10 on page 45 1 Make the cable connections For a list of the standard color codes fo...

Page 39: ...dc connect the positive lead to TB1 1 and the negative lead to TB2 2 NOTE Q If an external DC supply is not available a Power Supply Card models 751313MC 751318MC 751319MC or 751316 will be needed To...

Page 40: ...when using a power cable refer to Table 5 Table 5 Powering the 8 card Shelf CCC model 751109 15 via Power Cable NOTE Q When using the DC cable to power the shelf directly to TB1 and TB2 the grounding...

Page 41: ...r cables provided The Power Supply Card itself operates from either AC or DC In this case it is very important that the jumper W1 be installed properly Please refer to section 3 3 on page 26 and secti...

Page 42: ...arm circuit from the power supplies can be used to generate an alarm in case of an input power down or a power supply failure 2 Where reliability is very important or circuits are critical and 48 Vdc...

Page 43: ...s are discharged NOTE The operating temperature of the power supplies is 20 C 4 F to 65 C 149 F The battery back up 751312 has an operating range of 0 C 32 F to 50 C 122 F and therefore reduces the op...

Page 44: ...hand side of the shelf from the outside to the inside Slide the strain relief nut over the bare end of the cable inside the shelf 5 Route the power cable inside the shelf 6 Connect the power cable to...

Page 45: ...E DANGER DO NOT ALLOW CABLE TO SAG INTO THE ISOLATION GAP 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 TB2 RING 10 12 15 16 17 18 1 2 3 4 5 6 7 8 9 11 13 14 TB1 TIP GND 3 2 1 1 1 POWER CABLE FUSE LED...

Page 46: ...Q If the shelf s ground lug is not used and the ground strap is disconnected that will leave the shelf ungrounded and can make the installation hazardous NOTE Q Female receptacle TB3 is intended exclu...

Page 47: ...ion of a service requirement This prevents a service outage by enabling the servicing of the shelf before the batteries discharge If the shelf contains two redundant power supplies one unit would gene...

Page 48: ...nally than externally room temperature Therefore special care must be taken to ensure that the internal temperature never exceeds the operating temperature of each card This section provides a procedu...

Page 49: ...2 W at 48 Vdc 20 to 65 C 4 to 149 F 751322 2 6 W at 24 Vdc 2 W at 24 Vdc 20 to 65 C 4 to 149 F 751322 1 3 6 W at 48 Vdc 3 5 W at 48 Vdc 20 to 65 C 4 to 149 F 751322 2 2 6 W at 24 Vdc 2 W at 24 Vdc 20...

Page 50: ...l Power Consumption Power Dissipation Max Operating Temperature 1 2 3 4 5 6 7 8 24 Vdc Internal Power Supply 25 of Total power consumption at 24 Vdc 48 Vdc Internal Power Supply 25 of Total power cons...

Page 51: ...operating temperatures This temperature is referred to as the Highest Allowable Temperature 6 The temperature inside the shelf is calculated using the following equation 7 Temperature inside the shelf...

Page 52: ...rnal power dissipation For an example of the temperature calculation worksheet for a 8 card Shelf CCC model 751109 15 refer to Table 10 on page 53 The results of the calculation using those values is...

Page 53: ...W at 24 Vdc 8 4 W 50 C 122 F 7 751322 2 4 W at 48 Vdc 2 W 65 C 149 F 8 751322 2 3 6 W at 48 Vdc 3 5 W 65 C 149 F 24 Vdc Internal Power Supply 751313MC N A 25 of Total power cons umption at 24 Vdc 2 1...

Page 54: ...e cover properly you must first secure the bottom of the cover before joining the holes with their respective screws This procedure is very important in order to prevent damage to the cover NOTE Q The...

Page 55: ...Appendix A Acronyms...

Page 56: ...ta Terminal Unit ESD Electrostatic Discharge FCC Federal Communications Commission GND Ground GPR Ground Potential Rise IEEE Institute of Electrical and Electronics Engineers H4TU C HDSL4 Terminal Uni...

Page 57: ...57 Acronyms PWR Power RTU Remote Termination Unit RMT Remote RX Receive TX Transmit UL Underwriters Laboratory UPS Uninterruptible Power Supply...

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