ATL Telecom AM2048 - Manual (Page 46)

ascom
telecom USER GUIDE AM768A/AM2048A
46
Issue 8
X.21 Cables - Potential Problem Lengths
Cable Delay per metre (ns)
6
Driver Delay (ns) 30
Logic Delay (ns) 8
N Data Rate Bit Period Max Delay 1st Length 2nd Length
kbps ns ns m m
1 64 15625 3842 640.4 1302.1 1942.5
2 128 7813 1889 314.9 651.0 965.9
3 192 5208 1238 206.3 434.0 640.4
4 256 3906 913 152.1 325.5 477.6
5 320 3125 717 119.5 260.4 380.0
6 384 2604 587 97.8 217.0 314.9
7 448 2232 494 82.3 186.0 268.4
8 512 1953 424 70.7 162.8 233.5
9 576 1736 370 61.7 144.7 206.3
10 640 1563 327 54.4 130.2 184.6
11 704 1420 291 48.5 118.4 166.9
12 768 1302 262 43.6 108.5 152.1
13 832 1202 236 39.4 100.2 139.6
14 896 1116 215 35.8 93.0 128.8
15 960 1042 196 32.7 86.8 119.5
16 1024 977 180 30.0 81.4 111.4
17 1088 919 166 27.6 76.6 104.2
18 1152 868 153 25.5 72.3 97.8
19 1216 822 142 23.6 68.5 92.1
20 1280 781 131 21.9 65.1 87.0
21 1344 744 122 20.3 62.0 82.3
22 1408 710 114 18.9 59.2 78.1
23 1472 679 106 17.6 56.6 74.3
24 1536 651 99 16.5 54.3 70.7
25 1600 625 92 15.4 52.1 67.5
26 1664 601 86 14.4 50.1 64.5
27 1728 579 81 13.4 48.2 61.7
28 1792 558 76 12.6 46.5 59.1
29 1856 539 71 11.8 44.9 56.7
30 1920 521 66 11.0 43.4 54.4
31 1984 504 62 10.3 42.0 52.3
32 2048 488 58 9.7 40.7 50.4