Comtech EF Data CRS-300 - Manual (Page 249)

CRS-300 1:10 Redundancy Switch MN/CRS300.IOM
Appendix B Revision 19
B-3
B.2.2 Switch-to-User, EIA-530-to-V.35 Data Conversion Cable (DB-25MWinchester 34F)
This cable provides the EIA-530 to V.35 DCE conversion for connections between the Switch and the user data.
Figure B-2. DCE Conversion Cable – EIA-530-to-V.35