Manual for the Simplex 2120 System During Alarm, published in 1987. Document No: MUX2-31-001, Rev: Ed 4 87. Capabilities, specifications summary, and usage notes.
Manual for the Simplex 2120 System During Alarm, published in 1987. Document No: MUX2-31-001, Rev: Ed 4 87. Capabilities, specifications summary, and usage notes.
