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1.3  Environmental Use Information

AElevated operating ambient temperature - if installed in a closed or multi-unit rack assembly, 

the operating ambient temperature of the rack may be greater than room ambient temperature.  
Therefore, consideration  should be given to Tmra.

B. Reduced air flow - Installation of the equipment in a rack should be such that the amount of 

air flow required for safe operation of the equipment is not compromised.  Additional space between 
unit may be required.

C. Mechanical loading - Mounting of equipment in a rack should be such that a hazardous condition 

does not exist due to uneven weight distribution.

D. Circuit Overloading - Consideration should be given to the connection of the equipment to the 

supply circuit and the effect that overloading of circuits could have on over current protection and 
supply wiring. Appropriate consideration of equipment name plate rating should be used, when 
addressing this concern.

E. Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained.  

Particular attention should be given to supply connections other than direct connection to the 
Branch (use of power strips).

F. Top Cover - There are no servicable parts inside the product so, the Top Cover should not be removed.  

If the Top Cover is removed the ground strap and associated screw MUST BE RE-INSTALLED 
prior to Top Cover screw replacement.  FAILURE TO DO this may cause INGRESS and/or EGRESS 
emission problems.

1200-04 Manual, Rev. 0 

 

Page 6

    

                 04/22/10

Содержание 1200-04

Страница 1: ...roprietary to Cross Technologies Inc but may be reproduced or duplicated without the prior permission of Cross Technologies Inc for purposes of operating the equipment When ordering parts from Cross T...

Страница 2: ...es Inc s obligation under this warranty is limited to repairing or at Cross Technologies Inc s option replacing parts subassemblies or entire assemblies Cross Technologies Inc shall not be liable for...

Страница 3: ...onnector or locally with three SPDT switches located on the front panel A SPDT switch on the front panel selects either REMOTE or LOCAL operation A local override feature is included such that when th...

Страница 4: ...ut Characteristics Impedance Return Loss 50 18 dB Output Level Range 1dB 5 to 20 dBm 1dB compression 10 dBm TX Channel Characteristics Gain Adjustment 0 to 30 dB Frequency Response 1 0 dB Group Delay...

Страница 5: ...IF OUT C O M B I N E R SW1 3 SW2 2 SW3 1 70421 SWITCH COMBINER MDM 1 TX IF J102 TX COMB IF J3 MDM 2 TX IF J103 TX FDM IF J4 15 dB ATTEN 15 dB ATTEN 20 dB ATTEN SWITCH CONTROL J101 SW1 INT ON OFF SW2 I...

Страница 6: ...erloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits could have on over current protection and supply wiring App...

Страница 7: ...14 inch deep chassis An AC power supply provides 15VDC and 15VDC to the PCB The 1200 04 can be secured to a rack using the 4 holes on the front panel Figure 2 1 shows how the 1200 04 is assembled POW...

Страница 8: ...e Input 15 VDC V overrides LOCAL control and allows for REMOTE control 7 AGC OUT AGC Voltage Indicates current AGC gain see Table 2 2 8 V DC Voltage Reference 15 VDC 2 3 Front Panel Controls and Indic...

Страница 9: ...OUT J104 Figure 2 2 and that the appropriate LED s DS1 DS3 Figure 2 3 is lit 7 Adjust attenuator pots R1 R2 R3 T1 T2 T3 as needed Clockwise rotation provides increased output level full clockwise 0 dB...

Страница 10: ...ctor J105 can be monitored to determine the approximate input level and corresponding gain in AGC as Table 2 2 shows TABLE 2 2 Approximate AGC Vo oltage Voltage vs Gain and Input Le evel Level AGC Vol...

Страница 11: ...NOLOGIES INC 6170 Shiloh Road Alpharetta Georgia 30005 770 886 8005 FAX 770 886 7964 Toll Free 888 900 5588 WEB www crosstechnologies com E MAIL info crosstechnologies com 1200 04 Manual Rev 0 Page 11...

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