Price is for 1x DDE51C card and 1x rear connector
.DATA sheet on DDE51 is here https://www.axon.tv/downloads/26519/DDE51%20Produc...
From axon below
The DDE51 was at introduction the first modular Dolby Digital Pro encoder in the world. Targetedat transmission environments the DDE51 has all the advantages of the Synapse system, such ashot swap ability, redundant power supplies, SNMP compatibility and a host of other modularsolutions that fit the same chassis. The DDE51 is a functional equivalent to the DP569 from DolbyLaboratories.Preset based meta-data insertionDolby Digital encoding or bypass mode (individual for both outputs)Adjustable encoding data rate (56 kb/s to 640 kb, part of 8 presets)Full 8 channel independent input selectionBuilt-in generator per mono channelInput gain control per individual mono channelInput phase control per individual mono channelInput offset delay for phase compensation (0 to 1300 ms in 1 ms intervals)Auxiliary output can source a second AC3 stream or a copy of each inputUp to 18 AC3 pro encoders in 4RUMetadata input5.1, 4.0, 3.1, 3.0, 2.0, 1.0 modesGPI triggered presetStatus information of each input (including clipping)Encoder OK status reportingAES/EBU in and outputs on 75 Ohms BNC according to AES3ID-1995Locks to Black & Burst, wordclock, AES input or Mastercard
