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MSE Interoperability

A-1. Planning for MSE Interface

a. The requirement for establishing and controlling communications remains from higher to lower, left to right, and supporting to supported. With MSE that doctrine transcends more than just establishing and maintaining network integrity. The element in the higher, left, or supporting category also supplies the requisite equipment when augmentation is needed and coordinates and provides the necessary frequencies, frequency plans, COMSEC keys, codes, software, and control mechanisms.

b. MSE interface with other systems, such as EAC, TRI-TAC, or NATO, requires detailed planning and coordination. Signal planners must coordinate signal timing relationships, digital trunk group numbering and channel assignments, area codes, digit editing, and exchange of TG and AIRK COMSEC keys to ensure successful switch interface. Normally, the MSE gateway switch will modify its data base to accommodate the TRI-TAC switch.

A-2. Installation Parameters for MSE Interface

The CX-11230 cable used to interconnect the various assemblages is issued in 1/4-mile reels. Tables A-1 through A-7 give cable adjustment settings for lengths of cable from 1/4 to 1 mile (1 to 4 reels). The "cable reels" line lists the four possible cable lengths as 1/2/3/4 for 1, 2, 3, and 4 reels respectively. The cable adjustment for each cable length is similarly listed for transmit and receive at each assemblage. For example, a transmit listing of 4/4/4/4 means that the setting is 4 for each of the four possible cable lengths. The letters a, b, c, d, and e are used for settings of 0, 1/4, 1/2, 3/4, and 1 mile respectively. NA means no adjustment or not applicable.

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