| MSR (1) MSR (2) MSR [O) MSR (3) MSR (4J MSR (5) MSR (6J MSR (7J | DDSR TERI DCTS DRLSD CSR Rl RLSD | Delta Data Set Ready Trailing Edge of Ring Indicator Delta Clear to Send Delta Data Carrier Detect Clear To Send Data Set Ready Ring Indicator . Receiver Line Signal Detect |
