ADTRAN ESU 120e Ata Port Interface, Connector type Pin female D connector, Description Source

A ppendix B. Connector Pinouts

D ata Port Interface

Connector type 25-pin female D connector

Table B-4. Nx56/ 64 Pin Assignments for EIA-530 and V.36

Pin	EIA/CCITT	Description		Source
1	Shield			_
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

B-4 ESU 120e User Manual 61200420L1-1