ADC Kentrox T-SERV II (77115-L2) CSU/DSU T1 Modem
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"New ADC Kentrox T Serv 2 CSU /DSU 77115-L2 T-Serv II with Manual. CSU functions are contained in the T-SERV II CSU, including bipolar violation. test jacks, power options (line or local) and automatic keep-alive signal."
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