ADTRAN ISU 2X64 user manual Bit Rate

Chapter 6. Configuration

Bit Rate

The Bit Rate can be set asynchronously for 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200 bps.

The Bit Rate can be set synchronously for 2400, 4800, 9600, 19200, 38400, 48000, 56000, 64000, 112000, and 128000 bps.

Connector Type

The ISU 2x64 can provide either an EIA-232, RS-530, or V.35 inter- face to a user DTE by selecting the desired connector type. The V.35 interface requires the RS-530/232-to-V.35 adapter, part num- ber 1200072L1.

RTS Options

1 ms delay causes the Clear to Send signal to change state one millisecond after the DTE Request to Send signal changes state. The 18 ms delay causes the Clear to Send signal to change state 18 milliseconds after the DTE Request to Send signal changes state.

CTS Options

Forced CTS causes the CTS signal on the DTE connector to be continually asserted. Follows RTS causes the CTS signal to fol- low the state of the RTS lead.

CD Options

CD Forced On causes the carrier detect (CD) signal to always be asserted. Normal causes the CD signal to be asserted when a call has been successfully established. Off with LOCD (local discon- nect) causes the CD signal to be disasserted for a period of 5 sec- onds and then be reasserted at the termination of a call. Off Link Down causes the CD signal to be disasserted when the ISDN interface is not ready.

61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual 51