C. Connectors, Cables, and Pin Assignments
C-8
September 2004
7990-A2-GB20-20
Table C-5.
X.21 Cable Interface
Signal
ITU-T
Number
Direction
Pin
Number
Signal Common
102
—
8
Transmitted Data
103
To DSU/CSU
2 (A)
9 (B)
Received Data
104
From DSU/CSU
4 (A)
11 (B)
Request to Send
105
To DSU/CSU
3 (A)
10 (B)
Data Channel Received Line Signal Detector
109
From DSU/CSU
5 (A)
12 (B)
Transmit Signal Element Timing (DTE Source)
113
To DSU/CSU
7 (A)
14 (B)
Receiver Signal Element Timing (DCE Source)
115
From DSU/CSU
6 (A)
13 (B)
Summary of Contents for Hotwire 7995
Page 16: ...1 About the TDM SHDSL Endpoint 1 8 September 2004 7990 A2 GB20 20...
Page 42: ...3 Initial Startup and Configuration 3 18 September 2004 7990 A2 GB20 20...
Page 48: ...4 Configuring the Unit Using the Internal Switches 4 6 September 2004 7990 A2 GB20 20...
Page 91: ...7 Testing 7990 A2 GB20 20 September 2004 7 15...
Page 92: ...7 Testing 7 16 September 2004 7990 A2 GB20 20...
Page 132: ...B Standards Compliance for SNMP Traps B 8 September 2004 7990 A2 GB20 20...
Page 146: ...C Connectors Cables and Pin Assignments C 14 September 2004 7990 A2 GB20 20...
Page 148: ...D Technical Specifications D 2 September 2004 7990 A2 GB20 20...