ZyXEL U-336R User Guide - Page 157
Signal, ITU-TSS, Pin/Signal, Description, Direction, DTE-DCE
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Signal Pin 6 7 8 15 17 18 20 21 22 24 25 ITU-TSS EIA Signal Signal Name Name 107 CC 102 AB 109 CF 114 DB 115 DD 141 108/2 CD 108/1 140 125 CE 113 DA 142 Pin/Signal Description Direction DTE-DCE (CTS). Data Set Ready ← (DSR). Signal Ground (GND). Data Carrier Detected ← (DCD). Transmit Clock Signal ← (source: DCE). Synchronous Receive ← Clock. Local Analog → Loopback Test. Data Terminal Ready → (DTR). Connect DCE to line Remote Digital Loop → Test. Ring Indicator(RI). ← Transmit Clock Signal → (source: DTE). Test Indicator. ← Connector Pinouts 143
Connector Pinouts
143
Signal
Pin
ITU-TSS
Signal
Name
EIA
Signal
Name
Pin/Signal
Description
Direction
DTE-DCE
(CTS).
6
107
CC
Data Set Ready
(DSR).
←
7
102
AB
Signal Ground
(GND).
8
109
CF
Data Carrier Detected
(DCD).
←
15
114
DB
Transmit Clock Signal
(source: DCE).
←
17
115
DD
Synchronous Receive
Clock.
←
18
141
Local Analog
Loopback Test.
→
20
108/2
108/1
CD
Data Terminal Ready
(DTR).
Connect DCE to line
→
21
140
Remote Digital Loop
Test.
→
22
125
CE
Ring Indicator(RI).
←
24
113
DA
Transmit Clock Signal
(source: DTE).
→
25
142
Test Indicator.
←