AT&T IPC-1600 manual Performance Characteristics, Raw Mode Cooked Mode

Performance Characteristics

The IPC-1600 supports the following bit per second rates: 38400, 19200, 9600, 4800, 2400, 1800, 1200, 600, 300, 200, 150, 134.5, 110, 75, and 50.

The performance of the IPC-1600 expressed in terms of line occupancy at a prescribed baud rate in the raw and cooked modes with no flow control is as follows. In the cooked mode, canonical processing is enabled. In the raw mode, canonical processing is disabled. The line occupancy formula is:

# of transmitted characters per second

Line Occupancy (%) =			X 100
	bit rate /
		bits per character

Note: The line occupancy formula may have results greater than 100%. This is reserve capacity that is NOT achievable. The following line occupancy results are typical of an

AT&T 6386E/33 WGS Model S with one IPC-1600 board.

The input capacity of the IPC-1600 is determined by the number of lines (ports) simultaneously operating at 100% occupancy with no flow control as follows.

Raw Mode:

Cooked Mode:

16 ports at 4,800 bps

16 ports at 9,600 bps

8 ports at 19,200 bps

2 ports at 38,400 bps

16 ports at 4,800 bps

16 ports at 9,600 bps

7 ports at 19,200 bps

2 ports at 38,400 bps (with 75% occupancy)

SYSTEM FEATURES 6-3