Transcript
I
N S T A L L A T I O N
G
U I D E
MDC-408/412/416 Coax Distribution Module
12382 south gateway park place, 700, draper, utah 84020 1.801.617.3100 www.futuresmart.com
FutureSmart
MDC-408/412/416 Coax Distribution Module Installation Guide
Description The Coax module distributes modulated signals from VCRs, DBS Satellite receivers, DVD players, security cameras, and Antennae/CATV. High-quality broadband designs and components are used throughout, assuring quality distribution from source to receiver. Feeds SATV signals from a dual LNB dish to two receiver locations and (up to) four modulated input sources and one CATV/ANT input to up to sixteen television locations (MBC-416).
Features •
Inputs 5 (I-antenna or Cable TV and 4- Modulated inputs)
•
Outputs 8 (408) or 12 (412)
•
Surge protection
•
4- pass through ports
•
20db bi-directional amplifier
•
IR passing splitter and amplifier that are 5MHz-1GHz rated
•
UL® listed
Important Standards for Cable TV service specify that the input to the TV should be in the range from 12dBmV and +19dBmV. FutureSmart coax products are designed for input signals in this range and we have found that operating within range is especially important for digital TV and cable modems. For cases where the Cable provider has provided too high a signal level use the 10dB attenuator. [1] COAX DISTRIBUTION MODULE
[2]
1. Grounding lug (ground to a good earth ground)
SATV LNB
CCTV
Modulated Inputs
Ground
Outputs
A B
[3]
3. 4 pass through ports (terminate incoming sources)
[4]
[6]
4. Power input
12 VDC Power IN
2. Modulated Inputs (cameras, DVD, VCR, and Satellite receiver)
LED
IN 2 OUT
[8]
[9]
IN 1
5. Surge Protection
[7]
6. Coax Outputs 7. Cable TV or Antenna input 8. Power supply (use RG6 cable to connect power supply and amplifier)
[5]
9. Power light indicator
2
FutureSmart
MDC-408/412/416 Coax Distribution Module Installation Guide
Installation The modules fit to one side or the other (install to the opposite side of where the AC receptacle is installed). On the underside of each Module you will notice two tabs. On the top of the module you will notice two plunger molly rivets. On the panel you will notice three columns of raised metal loops. The two outside columns are the tab retainers and accept the module tabs, while the center column is for cable management (twist ties, bands, etc.). In addition, you will notice the holes on the panel snap rail. The module installs into the QuickNetwork Panel by inserting the Module tabs into the tab retainers, and seating the plunger molly rivets into the holes on the snap rail. After the Module is seated, it is locked into place by depressing the plunger molly rivets.
Hook-up Cable TV or Antenna is input directly into the open port on the Grounding Block on the underside of the module. Modulated signals are input through one of the 4 inputs labeled Modulated Inputs. Modulated signals should be assigned to channels that have an open channel both above and below the channel where you are modulating too. (See fig. #1) Note: Never hook-up cables form Satellite dish (LnB) to the receivers through the coax module. There is a DC voltage on those cables that can cause damage to the module and to TV hooked up to the module. Front side COAX DISTRIBUTION MODULE LED
Modulated Inputs
CCTV
Backside
Ground
12 VDC Power IN
Outputs
A OUT
B
IN 1
Once the inputs are hooked up the output signals should be available to use. Outputs contain both the incoming CATV/Antenna signal and any modulated signals you have fed into the modulated inputs. Keep terminating resistors in place for all unused outputs. (See Fig.#2)
SATV LNB
IN 2
Power is input directly into the Amp using coaxial cable run to the provided 12V Transformer plugged into a standard 110VAC outlet. Note: The coax module will not work without the power. (See fig. #1)
Three Channel Modulator
RF out
1
2
3 Cable TV or Antenna
Satellite Receiver
DVD Player
Audio & Video inputs Cable Tv/Anntenna and modulated channels
Camera
To have the optimal picture you need to have between 0 dB to +10 dB at the plate location at the room. Also be aware that just like you cannot have enough dB signal strength and have a poor TV picture, you can also have too much dB signal strength and over power the TV tuners and have poor TV picture.
You can use attenuators to bring the signal down to the range it should be. Most attenuators come in 3dB, -6dB, -10dB, -12dB, -16dB, and -20dB. The attenuators are placed between the incoming services if the service line dB range is too high. Or the attenuators can be placed in the individual TV location where the dB coming off the plate is too high.
3
FutureSmart
MDC-408/412/416 Coax Distribution Module Installation Guide
The antenna and/or cable input into the system should be between +12dB to +19dB to optimize picture quality. When you are using Antenna or Cable TV and modulated signals, before they go into the coax hub both signals need to be varied that they are within 5dBmV of each other. For example if your cable TV coming from the street is +19dBmV the modulated signal going into the module should be between +14dBmV and +24dBmV. If they off more than 5dBmV the higher dBmV signal can over power the weaker dBmV signal and give you a bad signal on both cable TV/Ant. and modulated channels
Troubleshooting No Picture: Check to see if there is Audio? If Audio is present on all channels then the Cable TV or Antenna is working. Try feeding a signal from a VCR into the CATV input with all other inputs removed. If there is still no picture it must be the TV or possibly the cable between the VCR and the TV. Are there flashes across the screen? This usually means that the Cable TV signal is not present and that the tuner is endlessly searching for channels. A black or blue screen means the same thing with most tuners the screen just goes blank instead of searching. You can try feeding a signal through the system using a VCR plugged into the CATV input with all other inputs removed. If you get a picture out at the TV then your Cable TV service is down. Are there other TV locations that are working? Check the wiring behind the TV that is not working. Is the TV plugged into the correct cable jack? Check that the cable is terminated properly at the jack. Are Channels 3,5,9,11 and 13 coming in? Check that the tuner input is set to CATV. Poor Picture quality: Snow: Snow on the lower channels indicates a poor connection. Check the picture at the entry point to the house to be sure the problem isn’t in the cable system before it enters the home. Check all internal connections by removing the inputs and outputs and then hooking them back up one at a time while monitoring an output on a TV hooked directly into the output side. When the picture quality is adversely effected you need to note which run it is and continue testing the other cables. It is possible that you could have more than one cable that is causing problems. Re-terminate the cables that you have isolated and re-test. Snow on the upper channels usually means there is water in the cable. Check the incoming signal at the entry point. Snow on all channels usually indicates an amplification problem. Check to see if the power supply is plugged in and that voltage is present at the point where the power cable is inserted into the coax module. If the signal is a nearby TV station then usually they can provide you with a filter that will correct the problem. Ghosting: Ghosting occurs when an off-air signal is received by your television before the cable signal arrives. Ghosting presents itself as a double image of the same picture that is slightly offset. Check for loose connectors or damaged cable. Remove any equipment that may be introducing the signal such as the jumper from the VCR or video game equipment. Be sure to check the incoming signal to make sure that the ghosting is not present at the entry point. Are you feeding both antenna and CATV into the system? If so remove the antenna. CATV usually carries all of your local off-air channels so there is no need for the antenna.
4
