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ADCP-61-810

Issue 4

September 2004

1303196 Rev A

RF Worx

®

Redundant Switch (RDS)
User Manual

OPER

ATIN

G

CALIB

RATIO

N

NOR

MAL

SWIT

CHIN

G

THRE

SHO

LD

(-R)

B

A

SING

LE

FAIL

URE LOSS O

F

INPU

T

DUA

L

FAIL

URE

SELECT

SELECT

STATUS

9134-B

2A 240V

V: 38.4–57.6

VDC/100/120/240

VA

C

Ø: 1

A: 1A MAX DC / 2A MAX A

C

HZ: 47–63 HZ

UR

PATEN

T PEND

ING

1
2
3
...
»

Содержание RF Worx

Страница 1: ...ndant Switch RDS User Manual OPERATING CALIBRATION NORM AL SW ITCHING THRESHOLD R B A SINGLE FAILURE LOSS OF INPUT DUAL FAILURE SELECT SELECT STATUS 9134 B 2A 24 0V V 38 4 5 7 6 VD C 10 0 12 0 24 0 VA C Ø 1 A 1A M AX DC 2A M AX AC HZ 47 6 3 HZ U R PATENT PENDING ...

Страница 2: ...equential or other similar damages This disclaimer of liability applies to all products publications and services during and after the warranty period This publication may be verified at any time by contacting ADC s Technical Assistance Center at 1 800 366 3891 extension 73475 in U S A or Canada or 952 917 3475 outside U S A and Canada or by e mail to connectivity_tac adc com ISSUE DATE REASON FOR...

Страница 3: ...TALLATION 8 3 1 Redundant Switch Installation 8 3 1 1 Redundant Amplifier Mode 10 3 1 2 A B Switch and Dual Alarm Monitor Modes 11 3 1 3 Optional Setup Procedures 11 3 2 220 to 240 VAC Operation 12 4 SETUP AND OPERATION 13 4 1 Initial Setup and Alarm 13 4 2 Calibration Redundant Amp Mode 14 4 3 Initial Setup and Operation A B Switch Mode 14 4 3 1 Installing A B Switch Mode Label 14 4 3 2 Entering ...

Страница 4: ...ADCP 61 810 Issue 4 September 2004 Preface Page iv 2004 ADC Telecommunications Inc ...

Страница 5: ...t icon seen below and are listed in descending order of severity of injury or damage and likelihood of occurrence GENERAL SAFETY PRECAUTIONS Danger Danger is used to indicate the presence of a hazard that will cause severe personal injury death or substantial property damage if the hazard is not avoided Warning Warning is used to indicate the presence of a hazard that can cause severe personal inj...

Страница 6: ...ADCP 61 810 Issue 4 September 2004 Preface Page vi 2004 ADC Telecommunications Inc ...

Страница 7: ...nel of the redundant switch An RS 485 interface also provides amplifier calibration data i e date and time and operating failure status to a Windows 95 98 NT personal computer PC equipped with switch monitoring software and appropriate interface cards If the RF input to the primary amplifier falls below a detectable level the switch sends a Loss of Signal LOS alarm to the PC but does not switch am...

Страница 8: ... and associated systems It is designed for Windows 95 98 NT systems with a 90 MHz or faster Pentium Processor 2 DESCRIPTION This section provides functional physical and technical descriptions of the RDS Redundant Switch 2 1 Functional Description The RDS has several distinct and unique modes of operation including redundant amplifier mode dual A B switch mode and dual alarm monitor mode The follo...

Страница 9: ...lure state the assured best failure algorithm of the microprocessor will momentarily compare the gain of the A B side amplifiers It will then choose the amplifier with the strongest gain and lock onto it until the dual failure status condition is cleared This assures that the RDS uses the best possible amplifier during a dual failure condition to minimize service degradation interruption 2 1 2 Dua...

Страница 10: ...tch monitoring software The output power levels of the monitored receivers must fall within the input power ranges for the RDS specified in Table 3 on Page 7 Figure 3 Block Diagram for Dual A B Switch Mode Operation 2 1 3 Dual Alarm Monitor Mode This mode shown in Figure 4 can be used to monitor RF signals anywhere in the forward path of the network such as the output of a critical amplifier or re...

Страница 11: ...is detected the failure is simply logged and identified The output power levels of the receivers or amplifiers being monitored must fall within the input power ranges for the RDS specified in Table 3 on Page 7 2 2 Physical Description Figure 5 and Figure 6 show physical dimensions of the RDS Figure 5 Top View With Dimensions Figure 6 Front View With Dimensions 17 20 IN 43 69 CM 7 44 IN 18 9 CM 12 ...

Страница 12: ... toggle switch Selects active amp A or B for REDUNDANT AMP mode E CHANNEL B LED When lit indicates B is the active side F NORMAL LED When lit shows that the unit is functioning in NORMAL mode G MODE SELECT toggle switch Selects NORMAL or CALIBRATION mode H CALIBRATION LED When lit indicates unit is in CALIBRATION mode I OPERATING LED When lit indicates monitoring equipment is operating normally J ...

Страница 13: ...power supply Table 3 RDS Specifications PARAMETER SPECIFICATION REMARKS Physical Panel Dimensions H x W x D 1 75 19 12 inches 4 45 48 26 30 48 cm Cable tie bar extends 4 inches 10 16 cm beyond rear panel Electrical Voltage Input 48 Vdc 20 or 240 120 VAC 47 to 63 Hz or 100 Vac 50 to 60 Hz Current Input 75 mA Typical RF Switch 2 SPDT per panel Bandwidth 50 1 000 MHz Insertion Loss 0 7 dB Typical Ret...

Страница 14: ...osition Calibration data retained for 8 hours minimum Detection Points On RF connector both ports Gain threshold or trip point Adjustment 2 to 7 dB A Guard Band of 0 5 dB is added to all threshold settings to prevent premature switching i e when setting 3 dB 3 5 dB is used as the switching point 1 0 dB To maintain accuracy after an extreme change in input signal level or operating temperature unit...

Страница 15: ...NPUT DUAL FAILURE SELECT SELECT STATUS 2A 24 0V V 38 4 5 7 6 VD C 10 0 12 0 24 0 VA C Ø 1 A 1A M AX DC 2A M AX AC HZ 47 6 3 HZ U R 9139 B PATENT PENDING 12217 C B RF A B RF 100 120 240 VAC 100W MAX OUTLET IN OUT 100 120 240 VAC PORT 1 PORT 2 RS 485 48DC 1A MAX IN OUT A OUT B ALARM NO C CAT S N DA TE CO DE MA DE IN US A SERIAL NUMBER A 2A 240V V 38 4 57 6 VDC 100 120 240 VAC Ø 1 A 1A MAX DC 2A MAX ...

Страница 16: ...ps required for your system See Section 3 1 3 on Page 11 4 Upon initial power up the front panel green NORMAL LED will be lit indicating that the internal power supply is operational If the input power is within the range shown in Table 3 on Page 7 the red DUAL FAILURE LED will be lit Proceed to Section 4 on Page 13 to set up and operate the switch Table 4 RF Cable to RF Connector Assignments LINE...

Страница 17: ...Procedures Use the following optional procedures to setup the RDS if applicable to your system configuration 1 Connect RS 485 interface cables from a personal computer PC with switch monitoring software to the RS 485 IN and OUT connectors on the rear panel of the switch This connection can be via a daisy chain to from other switch panels See Figure 13 Figure 13 Daisy Chained RDS Units 2 Connect tw...

Страница 18: ...ule back into the power inlet module making sure that the fuse module is seated properly 6 Close the power inlet module door making sure that it snaps firmly into place and that 230V does show through the window 7 Connect the correct type of power cord corresponding to the local electrical code 8 The front panel green NORMAL and red DUAL FAILURE LEDs shown in Figure 15 will be lit indicating that ...

Страница 19: ...N LED begins to flash 2 Select the desired failure threshold number of dB down from initial amplifier gain by observing the SWITCHING THRESHOLD seven segment LED display at the left end of the front panel while you momentarily press the adjacent toggle switch up to increase or down to decrease until the desired threshold number is displayed The threshold is the level below which the calibrated sig...

Страница 20: ... switch on the front panel the corresponding LED should light and remain lighted after the amplifier is selected The OPERATING LED should continue indicating green 4 3 Initial Setup and Operation A B Switch Mode 4 3 1 Installing A B Switch Mode Label Included with the RDS is an add on label Figure 16 that can be installed to identify any units that are programmed for A B switch mode operation Usin...

Страница 21: ...le locked onto port 1 the user should calibrate the base level of the receiver using the procedure described below After the RDS is calibrated the user can lock onto the designated primary receiver amplifier A or B with the AMP SELECT switch then set the desired threshold level with the SWITCHING THRESHOLD toggle switch The threshold set in this mode of operation will be the level below which the ...

Страница 22: ... monitoring software use the Edit Setup mode to fill the description field for the unused port with INACTIVE to signify that the port is not currently used 4 7 Initial Setup and Operation Dual Alarm Monitor Mode Following the A B setup procedure above will program the RDS in Dual Alarm Monitor Mode including installation of the A B Switch Mode label During the calibration procedure the RDS is cali...

Страница 23: ...le re powering hold the THRESHOLD switch up to enter Redundant Amp mode Hold the THRESHOLD switch down to enter A B and Alarm Monitor mode 3 Follow the setup procedures described in Section 4 5 MAINTENANCE Maintenance requirements of the redundant amplifier switch are minimal consisting merely of periodic cleaning 5 1 Preventive Maintenance The outside of the redundant amplifier switch should be c...

Страница 24: ...Extension 73475 Wireless Extension 73476 ASIA PACIFIC Sales Administration 65 6294 9948 Technical Assistance 65 6393 0739 ELSEWHERE Sales Administration 1 952 938 8080 Technical Assistance 1 952 917 3475 Italy 0800 782374 PRODUCT INFORMATION AND TECHNICAL ASSISTANCE Contents herein are current as of the date of publication ADC reserves the right to change the contents without prior notice In no ev...

Страница 25: ......

Страница 26: ...i www adc com ...

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