RAD Data comm FCD-X21 Manual de instalación Pagina 138

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Appendix A Pinouts Installation and Operation Manual
A-2 Data Channel Connector FCD-E1
A.2 Data Channel Connector
The data channels of the FCD-E1/1 and FCD-E1/2 are terminated in a 25-pin
D-type female connector, irrespective of the channel interface type. The pin
allocation in the data channel connector is given in Table A-2.
Table A-2. Data Channel Connector Pin Allocation
Pin Direction Designation Function RS-530 Circuit
1
FG Frame Ground AA
2 Input SDA Send Data (wire A) BA(A)
3 Output RDA Receive Data (wire A) BB(A)
4 Input RTSA RTS (wire A) CA(A)
5 Output CTSA CTS (wire A) CB(A)
6 Output DSRA DSR (wire A) CC(A)
7
SG Signal Ground AB
8 Output DCDA DCD (wire A) CF(A)
9 Output RCB Receive Clock (wire B) DD(B)
10 Output DCDB DCD (wire B) CF(B)
11 Input SCEB External Send Clock (wire B) DA(B)
12 Output SCB Send Clock (wire B) DB(B)
13 Output CTSB CTS (wire B) CB(B)
14 Input SDB Send Data (wire B) BA(B)
15 Output SCA Send Clock (wire A) DB(A)
16 Output RDB Receive Data (wire B) BB(B)
17 Output RCA Receive Clock (wire A) DD(A)
18 Input LLBA Local loopback activation (wire A)
19 Input RTSB RTS (wire B) CA(B)
20 Input DTRA/RCEA DTRA/External Receive Clock (wire A) CD(A)
21 Input RLBA Remote loopback activation (wire A)
22 Output DSRB DSR (wire B) CC(B)
23 Input DTRB/RCEB DTRB/External Receive Clock (wire B) CD(B)
24 Input SCEA External Send Clock (wire A) DA(A)
25 Output TMA Test mode indication (wire A)
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