AK2504A Datasheet, PDF (11/30 Pages) List of Unclassifed Manufacturers – DS3/STS-1/ES Transceiver

ASAHI KASEI
[AK2504A]
E3
Pulse characteristics are specified at the output ports
Table 5. E3 Pulse Specification (G.703)
Pulse shape (nominally rectangular)
Pair(s) in each direction
Test load impedance
Nominal peak voltage of a mark (pulse)
Peak voltage of a space (no pulse)
Nominal pulse width
Ratio of the amplitudes of positive and negative
pulses at the center of a pulse interval
Ratio of the widths of positive and negative
pulses at the nominal half amplitude
All marks of a valid signal must conform with the
mask (see Fig.3), irrespective of the sign
One coaxial pair
75 Ωs resistive
1.0 V
0 V ± 0.1 V
14.55 ns
0.95 to 1.05
0.95 to 1.05
17 ns
(14.55 + 2.45)
V
1.0
8.65 ns
(14.55 – 5.90)
Nominal pulse
14.55 ns
0.5
12.1 ns
(14.55 – 2.45)
24.5 ns
(14.55 + 9.95)
0
29.1 ns
(14.55 + 14.55)
FIGURE 17/G.703
Pulse mask at the 34 368-kbit/s interface
Fig. 3 E3 Pulse Mask
T1818860-92
MS0143-E-01
- 11 -
2004/01