GJUG4 Group Switch card
The GJUG4 circuit board serves as an interface between the group switch GS1 and the PCM line/LIM, and its function corresponds to that of GJUL4 in LIM. Used in old GSM magazines only.
The GJUG4 circuit board serves as an interface between the group switch GS1 and the PCM line/LIM, and its function corresponds to that of GJUL4 in LIM. Used in old GSM magazines only.
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