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The DMDU Programmer

Products

The DMDU Programmer is powered over a dedicated 20V DC in port, powers the DMDU LNB, monitors Digiturk’s Homebase transponders (fixed at 1105MHz, 1022MHz, 1144MHz) for changes in Frequency Plan version, updates the DMDU LNB when new version is available and pass through the DMDU LNB RF signal to feed a network of Digiturk STBs connected through RF splitters.

Parameter

Input frequency range (MHz)

950~2150

DC in rating

18~20V DC,1A   max.,F-type(female)

DMDU LNB RF input

1.F-type (female)

RF Output

1.F-type (female)

Input power (dBm)

-55~-15

Insertion loss (RF input to RF output) (dB)

3(max.)

Return loss

DMDU LNB RF input port (dB)

RF output port (dB)

 

8(min.)

8(min.)

DC out to DMDU LNB

18V   DC,500mA max.

Communication protocols with DMDU LNB

DiSEqC2.0

 

Status LED

Solid red –no   HB TS lock, dCSS ODU comm nok

Blink red x1   –no HB TS lock, dCSS ODU comm ok

Solid green   –HB TS lock, dCSS ODU comm ok

Blink green x1   –HB TS lock, dCSS ODU FP update

Blink   green/red x1 –comm with SatPal

Reset button

10sec press   triggers reset of the DMDU Programmer as well as of a connected DMDU

LNB (LED   blinking during the process) to factory defaults.

Digiturk Frequency Plan (FP) OTA updates

Scrambled   Digiturk Frequency Plan (FP) is received over Digiturk home base

transponders   with NIT/PMT linkage descriptor per DVB-SSU [ETSI TS 102 006]

standard.

Security

Security of   the system is ensured by using two sets of RSA2048 public private

key sets and a   AES128 FP scrambling Key:

• AES128 FP:   Used to scramble package content (and signed with hash SHA256)

• Inverto   RSA2048 public Key 1 - Inverto RSA2048 Private Key 1: Used to encrypt

AES128 FP key

• Inverto   RSA2048 public Key 2 - Inverto RSA2048 Private Key 2: Used to sign

package   content

 

Power consumption   (unit only, no   load)

150mA max. @   18V, 2.51W max.

Operating Temperature

-30°C ~ 60°C

Environment and installation

Indoor use   (IP54), wall mount installation, earthing port