參數(shù)資料
型號: PEF2445N
英文描述: ?Multipoint Switching and Conferencing Unit - Attenuation?
中文描述: ?多點交換和會議股-衰減?
文件頁數(shù): 41/73頁
文件大?。?/td> 1618K
代理商: PEF2445N
PEB 2466
PEF 2466
Interface Description
Hardware Reference Manual
32
2001-02-20
Figure 18
PCM Interface Example: Detail A
The pins DRA/B and DXA/B may be strapped together to form a multiplexed
bi-directional PCM port.
5.3
Signaling Interface
The SICOFI
4-μC Signaling Interface is used to monitor and control supervision and
signaling functions on up to four subscriber lines. The device generates interrupt signals
to indicate signaling status changes on any of the input pins.
The Signaling Interface consists of the following I/O pins and functions:
28 signaling pins (2 input pins, 2 output pins, and 3 user-configurable bi-directional
pins per channel),
Debouncing functions,
2 interrupts (one for each channel-pair), and
2 clock output signals (user configurable).
DRA
PCLK
FSC
DXA
TCA#
High 'Z'
High 'Z'
Voice Data
Voice Data
Clock 0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Bit
2466_219
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