76000451

Modtap - RJ-45f (Etherlite) to DB-25m DCE The wiring diagram for an RJ-45 8-pin to DB-25 DCE modtap is shown in Table 1. This adapter is used to connect a terminal/printer to an Etherlite port, and is available from Digi by ordering part number 76000451. Table 1: EIA-232 RJ-45 8-pin to DB-25 DCE modtap From To RJ- Signal Direction Signal DB45 25 1 RTS è CTS 5 2 nc X DSR 6 3 DCD ç DTR 20 4 5 RxD TxD ç è TxD RxD 2 3 6 SG ↔ SG 7 7 8 DTR CTS è ç DCD 8 RTS 4 * Arrows indicate which direction the signal is flowing NOTES: • • • This cable utilizes the RTS/CTS signals of the terminal/printer for hardware flow control. Since null- modem swapping is done within the modtap, a straight-through RJ45 cable is used between Etherlite and modtap adapter. EIA-232 cables cannot exceed 2500pF.