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User Interface Guide
Connector Pinouts
Table 2 below and Table 3 on page 17 give the pinouts for the V.35 and X.21 connectors.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
I= Input, O= Output, N/A= Not Applicable
16
V.35
X.21
NETWORK
Figure 2. Rear Panel
Table 2. X.21 Interface
Name
I/O
Shield
I/O
Shield for cable
TD-A
I
Transmitted Data
RTS-A I
Request to Send
RD-A
O
Received Data
CD-A
O
Carrier Detect
CLK-A
O
Signal Timing
ETC-A I
External Transmit Clock
SG
I/O
Signal Ground
TD-B
I
Transmit Data (return)
RTS-B I
Request To Send (return)
RD-B
O
Receive Data (return)
CD-B
O
Carrier Detect (return)
CLK-B
O
Signal Timing (return)
ETC-B I
External Transmit Clock (return)
NC
N/A
No Connection
© 2002 ADTRAN, Inc.
Express 6503 SHDSL ATM DSU User Manual
CRAFT
90-240VAC 50/60Hz .1A
Description
61200296L1-1C
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