COMSPHERE 3550 Series Data Service Units2-8 July 1999 3550-A2-GB20-40Table 2-2LADS Connection DistancesData Rate Wire Gauge (AWG)Data Rate(kbps) 19 22 24 262.4 20.0 mi(32.2 km)16.6 mi(26.7 km)12.7 mi(20.5 km)9.4 mi(15.1 km)4.8 19.4 mi(31.2 km)12.7 mi(20.5 km)9.6 mi(15.4 km)7.1 mi(11.5 km)9.6 15.2 mi(24.5 km)9.7 mi(15.6 km)7.3 mi(11.7 km)5.6 mi(9.0 km)19.2 1 11.8 mi(19.0 km)7.5 mi(12.1 km)5.7 mi(9.2 km)4.2 mi(6.8 km)38.4 11.2 mi(18.0 km)6.5 mi(10.5 km)4.6 mi(7.4 km)3.2 mi(5.1 km)56 9.2 mi(14.8 km)5.4 mi(8.7 km)3.8 mi6.2 km)2.8 mi(4.5 km)64 9.2 mi(14.8 km)5.4 mi(8.7 km)3.8 mi(6.2 km)2.8 mi4.5 km)1 Power level is –10 dBm.Addressing the UnitA unique address must be assigned to each control andtributary DSU in your network. You can assign an addresswithin the range of 1 through 255.NOTEDo not assign the number 192as a network address. Thisnumber is reserved as abroadcast address.If a DBM is installed, it requires a separate addresswhich is automatically assigned by the DSU. The addressassigned a DBM is the DSU’s address, plus 1 (e.g., if theDSU’s address is 1, the assigned DBM address will be 2).NOTEThe numbers 191 and 255cannot be assigned to a DSUthat has a DBM. However,addresses can be assigned inany order; they do not have to besequential.It is recommended that onlyodd-numbered addresses beassigned to DSUs so thateven-numbered addresses arereserved for DBMs. If yournetwork does not currentlyinclude DBMs, you retain theflexibility to add them laterwithout having to reconfigureyour entire network.
