Drake EH244 SERIES - Manual (Page 6)

INSTALLATION AND MOUNTING
The EH244 Series Encoder Host is designed to be installed in a standard 19’’ rack.
*NOTE: All Drake Digital Encoder and Interface Modules must be installed in the EH244 Series
chassis before power is applied. DO NOT INSERT ENCODER MODULES OR INTERFACE
MODULES WHILE THE EH244 SERIES UNIT IS POWERED. Inserting any Encoder or
Interface Modules into the EH244 Series Encoder Host chassis, while it is powered, will
void the EH244 Series Encoder Host’s and Encoder / Interface Modules’ warranties.
Image: Rear view of base model EH244 Quad QAM Encoder Host
Module Slot Number: 1 2 3 4 5 6
Encoded Program Number: 1 (& 2*) 3 (& 4*) 5 (& 6*) 7 (& 8*) 9 (& 10*) 11 (& 12*)
The input modules that will be inserted into the back of the EH244 Series chassis, are referred
to in this manual (and in the Ethernet Control Interface, Chapter 3 CONFIGURATION on Page )
numerically by position of the Slot that they occupy. They are 1, 2, 3, 4, 5, and 6, from left to right,
when viewing the rear of the EH244 Series unit. Each Encoder Module’s program number will be
assigned based on its Slot location:
Slot 1 will provide programs 1 (*and 2 if using an SDE24 Dual Standard Definition MPEG Encoder
Module); Slot 2 will provide programs 3 (*and 4); Slot 3 will provide programs 5 (*and 6); etc.
*NOTE: In the case where a Slot has a single program Encoder Module inserted in it, for
ident-ification purposes, the Slot will provide only the odd-numbered program.
Ex: If there are six (6) HDE24 High Definition MPEG Encoder Modules (which are single
program Encoders) inserted into the six (6) Slots of the EH244 Series Encoder
Host, the programs’ numbers being output from the HDE24’s to the EH244 Series’
multiplexer would be identified as programs 1, 3, 5, 7, 9, and 11.
EAS - Modes (Emergency Alert Services)
If the EH244 Series Encoder Host will be used in an EAS-enabled system, and the unit will be used
as the ‘master’ EAS unit in Slot 6 Mode (or Slot 6 + SCTE 18 Mode), a Drake model SDE24EAS
(EAS Input Encoder) module must be installed in slot 6 of the chassis.
If the EH244 Series Encoder Host is configured as a ‘slave’ EAS unit (Slot 6 Mode or Slot 6 + SCTE
18 Mode
), a Drake model ASII module (ASI Input) must be installed in slot 6, and wired to the ASI
Output port of the previous Encoder Host (EH24, EH24A, or EH244 Series) in the chain.
(continued on Page 7)
EH244 ENCODER HOST SERIES
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