Black Box CL512A-F, Руководство пользователя

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9
MODULAR CURRENT LOOP ADAPTER
Figure 3-2. Full-Duplex DTE Operation.
Figure 3-3. Full-Duplex DCE Operation.
FULL-DUPLEX (4-WIRE)
2
3
7
20
1
2
3
4 TX+
TX-
RX+
RX- RX+
RX-
TX+
TX-
CL512
DCE DTE
COMPUTER
(DTE)
ASYNC COMPUTER
(ACTIVE CURRENT LOOP DEVICE)
FULL-DUPLEX (4-WIRE)
2
3
6
7 1
2
3
4 TX+
TX-
RX+
RX- RX+
RX-
TX+
TX-
CL512
DCE DTE
MODEM
(DCE)
ASYNC COMPUTER
(ACTIVE CURRENT LOOP DEVICE)