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Appendix D: S-Register List
61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual 117
S74.......DTE STOP Selects the number of asynchronous stop bits. More
than one option can be set at the same time.
0 = 1 stop bit (default)
1 = 1.5 stop bits
2 = 2 stop bits
S75.......DTE FLOW Selects asynchronous flow control
0 = None (default)
1 = Hardware flow. CTS from DCE controls DTE.
2 = Hardware flow. RTS from DTE controls DCE.
3 = Hardware flow. RTS and CTS flow control.
4 = Software flow. XON/XOFF from DCE controls
DTE.
8 = Software flow. XON/XOFF from DTE controls
DCE.
12 = Software flow. XON/XOFF controls DTE and
DCE.
S76.......DTE CLOCK Selects DTE connector transmit clock timing source.
0 = Internal (ISU 2x64 supplies timing) (default)
1 = External (DTE supplies timing)
S135..... Value determines whether or not the ISDN switch
should consider a DTE port busy. S23 must be pro-
grammed before this register is used.
0 = DTE port is not busy (default)
1 = DTE port is busy
The following are the string locations for stored numbers 0 - 9:
SS80.....SN0 LOC Stored number 0 string
SS81.....SN1 LOC Stored number 1 string
SS82.....SN2 LOC Stored number 2 string
SS83.....SN3 LOC Stored number 3 string
SS84.....SN4 LOC Stored number 4 string
SS85.....SN5 LOC Stored number 5 string
SS86.....SN6 LOC Stored number 6 string
SS87.....SN7 LOC Stored number 7 string
SS88.....SN8 LOC Stored number 8 string
SS89.....SN9 LOC Stored number 9 string
S118 = 0 CHAP Authentication (default)
S118 =32 PAP Authentication (required for MP connection with
WIN 95)