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A ppendix B. Connector Pinouts
B-4 ESU 120e User Manual 61200420L1-1
D ata Port Interface
Table B-4. Nx56/ 64 Pin Assignments for EIA-530 and V.36
Connector type 25-pin female D connector
Pin EIA/CCITT Description Source
1Shield _
2 BA (A )/103 Transmitted Data (TD-A ) DTE
3 BB (A )/104 R eceived Data A (R D-A ) DCE
4 CA (A ) /105 R equest to Send A (R TS-A ) DTE
5 CB (A ) /106 Clear to Send A (CTS-A ) DCE
6 CC (A )/107 DCE R eady (DSR -A ) DCE
7 A B /102 Signal Ground DTE
8 CF (A ) /109 R eceived Line Detector (DCD-A ) DCE
9 DD (B) /115 R eceiver Element Timing (R C-B) DCE
10 CF (B)/109 R eceived Line Detector (DCD-B) DCE
11 DA (B) /113 External Clock B (ETC-B) DTE
12 DB (B)/114 Transmit Element Timing (TC-B) DCE
13 CB (B)/106 Clear to Send (CTS-B) DCE
14 BA (B)/103 Transmitted Data (TD-B) DTE
15 DB (A )/114 Transmit Element Timing (TC-A ) DCE
16 BB (B) /104 R eceived Data (R D-B) DCE
17 DD (A ) /115 R eceiver Element Timing (R C-A ) DCE
18 Not supported
19 CA (B)/105 R equest to Send (R TS-B) DTE
20 Not supported
21 Not supported
22 CC (B)/107 DCE R eady (DSR -B) DCE
23 Not supported
24 DA (A ) /113 External Clock A (ETC-A ) DTE
25 Not supported