Motorola V3229 Operating Instructions - Page 10

DTE CONNECTION uction Installation The DTE connector is a 25-pin D-series type conforming to EIA-232 specifications. Pin signals are shown in Figure 2-2 and described in Table 2-1. TELEPHONE LINE CONNECTION The modem operates in one of three line-related modes: ¥Permissive (PSTN) ¥Programmable (PSTN) ¥Private line Permissive and programmable modes are used on the Public Switched Telephone Network (PSTN). Private line mode is used on 4-wire or 2-wire dedicated leased lines. The user must decide which mode to use and then select the telephone jack arrangement accordingly. PSTN Connection Modems are registered with the Federal Communications Commission (FCC) for direct connection to the PSTN (dial-up network). The label on the chassis bottom gives the FCC registration number and other information. Direct connection to the PSTN provides two modes of operation (Figure 2-3): ¥Permissive (standard) ¥Programmable Permissive In permissive mode, the modem transmits a maximum signal level of -10 dBm. For standard tele- V.3229 / V.3229L -3