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参数资料
| 型号： | MH89625C-5 |
| 厂商： | Mitel Networks Corporation |
| 英文描述： | OPS/DID PCM SLIC Preliminary Information |
| 中文描述： | 老年退休金计划/没有的PCM用户接口的初步信息 |
| 文件页数： | 2/16页 |
| 文件大小： | 150K |
| 代理商： | MH89625C-5 |
2-270
MH89625C
Preliminary Information
Figure 2 - Pin Connections
Pin Description
Pin #
Name
Description
1
TIP
Tip Lead.
Connects to the “Tip” lead of the telephone line.
2
RING
Ring Lead.
Connects to the “Ring” lead of the telephone line.
3
IC
Internal Connection:
This pin is internally connected.
4
IC
Internal Connection:
This pin is internally connected.
5
IC
Internal Connection:
This pin is internally connected.
6
RF1
Ring Feed 1:
For OPS operation, connects to the external battery backed ringing
generator, see Figure 2.
7
RF2
Ring Feed 2:
For OPS operation, connects to RING through a normally closed relay
contact (K1), see Figure 2.
8
IC
Internal Connection.
This pin is internally connected.
9
V
EE
SHK
Negative Supply Voltage:
(-5V)
10
Switch Hook Detect (Output):
A logic low indicates an off-hook condition.
11
LED
LED Drive (Output):
Drives an LED directly through an internal 2.2k
resistor. A logic
low indicates an off-hook condition.
12
CSTi
Control ST-BUS in (Input):
A TTL compatible digital input used to control the function
of the filter/codec. Three modes of operation may be affected by applying to this input
logic high, logic low or an 8-bit serial word, depending on the logic states of CA and F1i.
Functions controlled are: power down, filter gain adjust, loopback, chip testing, and the
SD outputs which control the relay drivers, ring trip circuitry and impedance selection.
13
DSTi
Data ST-BUS in (Input):
A TTL compatible digital input which accepts the 8-bit PCM
word from the incoming PCM bus.
14
C2i
Clock Input (Input):
A TTL compatible digital input which accepts the 2048 kHz clock.
15
DSTo
Data ST-BUS Out (Output).
A three stage TTL compatible digital output which drives
the 8-bit PCM word to the outgoing PCM bus.
16
F1i
Synchronization Input (Input):
A TTL compatible active low digital input enabling (in
conjunction with CA) the PCM input, PCM output and digital control input. It is internally
sampled on every positive edge of the clock, C2i, and provides frame and channel
synchronization.
IC
IC
VBAT
LGND
GS
VAC
IC
LCA
VDD
AGND
IC
IC
IC
IC
IC
VREF
VRLY
RD4
RD3
IC
RING
IC
IC
IC
RF1
RF2
IC
VEE
SHK
LED
CSTi
DSTi
C2i
DSTo
F1i
CA
RGND
RD2
RD1
TIP
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1
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相关代理商/技术参数 |
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| MH89625C-6 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:OPS/DID PCM SLIC Preliminary Information |
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