Cisco TelePresence System Codec 6000 MXP Руководство по физическому интерфейсу - Страница 12
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MXP Series Codecs
Contents
Net Interface Socket
Net interface socket. 1 × X.21 / V.35 / RS449
with 1 × RS366 Call Control up to 2 Mbps
V.35 DTE - DCE
Pin
Signal
Description
Name
1
FGND
Frame GND on
equipment
11
SD(A)
Send Data / Transmit
12
SD(B)
Send Data / Transmit
13
RD(A)
Receive Data
14
RD(B)
Receive Data
15
SCR(A)
Signal Clock Receive
16
SCR(B)
Signal Clock Receive
17
SCT(A)
Signal Clock Transmit
18
SCT(B)
Signal Clock Transmit
19
GND
Signal GND
1
22
RLSD(CD)
Received Line Signal
Detector / Carrier
Detect
23
RLSD(GND)
Signal GND
1
24
RI
Ring Indicator
25
LOS
Loss of Signal (KG194)
26
DTR
Data Terminal Ready
1) This pin is connected to ground for correct
operations
D14790.01 MXP Series Codec Physical Interface Guide, May 2011.
© 2011 Cisco Systems, Inc. All rights reserved.
Introduction
Codec 6000 MXP
Codec 6000 MXP
HD D-SUB 26 pin-out
External view of socket
1
10
19
RS449 DTE - DCE
Pin
Signal
Description
Name
1
FGND
Frame GND
11
SD(A)
Send Data
12
SD(B)
Send Data
13
RD(A)
Receive Data
14
RD(B)
Receive Data
15
RT(A)
Receive Timing
16
RT(B)
Send Timing
17
ST(A)
Send Timing
18
ST(B)
Send Timing
19
GND
GND
1
20
TR(A)
Terminal Ready
21
TR(B)
Terminal Ready
22
RR(A)
Carrier Detect / Receiver
Ready
23
RR(B)
Carrier Detect / Receiver
Ready
24
IC
Incoming Call
25
LOS
Loss of Signal (KG194)
Frame GND is connected to pin 1 on DTE
1) This pin is connected to ground for correct operations
Codec 3000 MXP
9
18
26
Note the following:
V.10 (RS423). For balanced signals
a "0" = low voltage, is defined as
terminal A positive with respect to
terminal B. For unbalanced signals
a "0" = low voltage, is defined as
terminal positive with respect to
GND. Cable length for Leased Line
Control should not exceed 20 m.
RS 366. All balanced inputs and
outputs (A and B) use balanced line
signals according to V.11 (RS 422),
while single ended signals are in
accordance with V.10 (RS423). The
"0" = low voltage definitions are the
same as for V.10 above. Max cable
length, as for V.10 above.
12
Physical interface guide
Contact us
RS366 DTE - DCE
Pin
Signal
Description
Name
1
FGND
Frame GND
2
DPR
Digit Present
3
ACR
Abandon Call & Retry
4
CRQ
Call Request
5
PND
Present Next Digit
6
DLO
Data Line Occupied
7
NB1
Digit Bit 1
8
NB2
Digit Bit 2
9
NB4
Digit Bit 4
10
NB8
Digit Bit 8
X.21 DTE - DCE
Pin
Signal
Description
Name
1
FGND
Frame GND
11
T(A)
Send Data / Transmit
12
T(B)
Send Data / Transmit
13
R(A)
Received Data /
Receive
14
R(B)
Received Data /
Receive
15
S(A)
Signal Element Timing
16
S(B)
Signal Element Timing
20
C(A)
Terminal Ready /
Control
21
C(B)
Terminal Ready /
Control
22
I(A)
Carrier Detect
23
I(B)
Carrier Detect
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