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參數資料
| 型號： | 78P7200-IH |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Line Interface Unit |
| 中文描述： | 線路接口單元 |
| 文件頁數： | 9/11頁 |
| 文件大小： | 171K |
| 代理商： | 78P7200-IH |
78P7200
E3/DS3/STS-1
Line Interface Unit
TRANSMITTER
All of the measurements for the transmitter are made with the following conditions unless otherwise stated:
1. Transmit pulse characteristics are obtained using a line transformer which has the characteristics, similar
to Pulse Engineering PE-65969, Mini circuit T4-1, Valor PT5045.
2. The circuit is connected as in Figure 1.
Page: 9 of 11
2005 Teridian Semiconductor Corporation
Rev 3.0
PARAMETER
Transmit clock repetition
CONDITIONS
MIN
NOM
22.35
19.29
29.1
11.18
9.65
14.55
4.5
MAX
6
UNIT
ns
ns
ns
ns
ns
ns
ns
DS3
STS-1
TTCF
E3
DS3
STS-1
Transmit clock pulse width
TTC
E3
Transmit clock negative
transition time
Transmit clock positive
transition time
Transmit data set-up time TTPDS
TTCNT
TTCPT
4.5
6
ns
Measured at
transformer,
DS3
STS-1
3.5
3.5
3.5
3.5
3.5
3.5
10.62
10.62
11.18
9.65
14.55
11.18
9.65
14.55
11.18
9.65
14.5
11.18
9.65
14.5
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
TTNDS
E3
DS3
STS-1
Transmit data hold time
TTPDH
TTNDH
E3
DS3
LBO = High
LBO = High STS-1
LBO = Low
LBO = High
LBO = High STS-1
LBO = Low
12
12
Transmit positive line
pulse width
TTPL
E3
DS3
Transmit negative line
pulse width
TTNL
Measured at
transformer,
E3
Transmit line pulse waveshape
See Note 1 for DS3
See Note 2 for E3
See Note 3 for STS-1
Note 1: Characteristics are in accordance with ANSI T1.102 - 1993 Table 4 and Figure 4.
Note 2: Characteristics are in accordance with ITU-T G.703 - 1991 Figure 17.
Note 3: Characteristics are in accordance with ANSI T1.102 - 1993 Figure A.1.
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