Unit installation

Installation and Operation Manual Appendix A Pinouts
FCD-E1 Data Channel Connector A-3
RS-530 Data Channel
The functions of the pins in the RS-530 data channel interface connector are listed
in Table A-2. The following sections provide information on the cables required to
connect user’s equipment to the RS-530 channel in the various timing modes.
DCE Mode
This mode is used to connect to user’s equipment with DTE interface. The user’s
equipment can be directly connected to the FCD-E1 channel connector using a
standard “straight” RS-530 cable (i.e., a cable wired point-to-point). The “straight”
cable is terminated in a 25-pin male D-type connector at the FCD-E1 side.
DTE1 Mode
This mode is used to connect to user’s equipment with DCE interface that can
accept, as its external clock, the receive clock signal provided by the FCD-E1 data
channel.
In this case, it is necessary to connect a 25-pin male/25-pin male cross-cable (see
Figure A-1) wired in accordance with Table A-3, between the FCD-E1 CHANNEL
connector and the user’s equipment RS-530 connector.
Figure A-1. RS-530 Adapter Cable for DTE1 Mode
Table A-3. Wiring of RS-530 Adapter Cable for DTE1 Mode
FCD-E1 Side Designation Function User’s Side
1 FG Frame Ground 1
2 SDA Send Data (wire A) 3
3 RDA Receive Data (wire A) 2
4 RTSA RTS (wire A) 8
5 CTSA CTS (wire A) –
6 DSRA DSR (wire A) 20
7 SG Signal Ground 7
8 DCDA DCD (wire A) 4
9 RCB Receive Clock (wire B) 11
10 DCDB DCD (wire B) 19
11 SCEB External Send Clock (wire B) 9