XRT7296
DS3 SIGNAL REQUIREMENTS AT THE DSX
$ ,+ /1// /.
1 * 21/1 //
. 1 /// 1 /// A
1 21 1 + /1 1
3, . M/; 1 * //
/./ 3+ + 1 + >, 'Table 1)
1 "%) / 1,1 & . . "!
/3+ 1 *
,+- 2 + ,+ + >, AG
1 7 ,+ + 'See Table 3 and Figure
3( 1 4++/ *78*%% ,+ + 1
,+ 3- 1 "%) 1
+
Parameter
0,+ 1
02 +
Specification
")@3 ±
4 + 21 1* ,3, '49(
"& &.
+ ,+ , . 1 + Figure 3 Figure 4 1 ,+ +, -
3 /+ 3- / ./ . 1 + 1 ,+ +, , 3 3*
2 )< ; !&< ; , 1 / . 1 ,+
$ ++ 1 2 )! ± @:B , 3 *!
D&"4 1 2 ") ± @:B , 3 *!4 *4
Notes
1 The pulse template proposed by G.703 standards is shown in Figure 4 and specified in Table 4 The proposed G.703 standards
further state that the voltage in a time slot containing a 0 must not exceed 5% of the peak pulse amplitude, except for the residue
of preceding pulses.
2 The power levels specified by the proposed G.703 standards are identical except that the power is to be measured in 3kHz bands.
3 The all 1s pattern must be a pure all 1s signal, without framing or other control bits.
Table 2. DSX•3 Interconnection Specification
Lower Curve
Time
Equation
*)
*) D)
*
& N D N D! OO*
D)
*
Upper Curve
Time
Equation
*)!
*)! D )
D)
D
&N D N DOOD
&D"*!'*)(
Table 3. DSX-3 Pulse Template Boundaries for ANSI T1.404 Standards (See Figure 3. )
Lower Curve
Time
Equation
*!& *)
*) D)
*
& N D N D !OO *
D) D
*
Upper Curve
Time
Equation
*!& *)!
*)! D )
*)! )
D
&N D N DOO D
!D"*!'*)(
Table 4. DSX-3 Pulse Template Boundaries for Bellcore TR-NWT-000499 Standards (See Figure 4)
!