2 ] Interface Cable Connection - Denso BHT-300B User Manual

[ 2 ] Interface Cable Connection

CU-301
As illustrated below, connect the CU-301 (on which the BHT is placed) to a host PC with a cross-mode
cable. To connect it to a modem, use a straight-mode cable.
DTE and DCE
In the RS-232C interface specifications, the DTEs (Data Terminal Endpoint) shall be generally
connected with each other by a cross-mode cable; the DTE and DCE (Data Circuit Endpoint) shall be
connected with each other by a straight-mode cable.
The DTE is one piece of equipment connected at both ends of a communications line as a sender or
receiver of data (such as CU-301 on which the BHT is placed and a host PC).
The DCE is one piece of equipment connected in-between the DTE and the communications line and
terminates communications lines. It converts their signals without any change in contents (such as
modem or TA).
CU-321
Use a cable that conforms to the USB specification.
CU-311
Use a TIA/EIA Category 3 cable or higher one.
CU-301
(DTE)
Cable Connection between CU-301 and Host PC
CU-301
(DTE)
Cable Connection between CU-301 and Modem
154
Host PC
(DTE)
Modem
(DCE)