® SP319 20Mbps, +5V-Only V.35 Interface with RS-.
SP319CF - 20Mbps / 5V-Only V.35 Interface with RS-232 V.28 Control Lines
® SP319 20Mbps, +5V-Only V.35 Interface with RS-232 (V.28) Control Lines s s s s s s s s s 20Mbps V.35 Data Throughput +5V-Only, Single Supply Oper.