Library /sys$common/syshlp/ncphelp.hlb SET, CIRCUIT, TRANSMIT TIMER milliseconds  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Applies to DDCMP circuits.  Specifies the number of milliseconds
 to delay between data message transmits.  Milliseconds must be a
 decimal integer in the range 0 to 65535.  The default is 0.