V24-V28 - Interface signals & connection

Circuit
102
103/TD
104/RD
105/RTS
106/CTS
107/DSR
108/DTR
109/DCD
113/SCT
114/SCT
115/SCR
125/RI
140/RL
141/LL
142/TI

112/RS		 Pin
7
2
3
4
5
6
20
8
24
15
17
22
21
18
25

23		 Designation
Signal Ground
Transmit Data
Receive Data
Request To Send
Clear To Send
Data Set Ready
Data Terminal Ready
Data Carrier Detect
Serial Clock Transmit (from DTE)
Serial Clock Transmit (from DCE)
Serial Clock Receive
Ring Indicator
Remote Loop Back
Local Loop Back
Test Indicator

Rate Selector (DCE)

A SPARE circuit allows the connection of any incoming signal. By default, the factory configuration is the connection to the 112 circuit allowing observation of V32 modem folds in switched network.

Characteristics

 Standards

Electrical

 ITU: V28 recommendation

Circuits specifications

 ITU: V24 recommendation

Mechanical

 ISO: IS2110

 

Functions

Specifications

Connection

 Parallel monitoring arrow_2_right.gif (211 octets)
DTE simulation arrow_2_right.gif (211 octets)
DCE simulation arrow_2_right.gif (211 octets)

Clock

Use of  114/115 clock

 arrow_2_right.gif (211 octets)

Use of  113/115 clock

 arrow_2_right.gif (211 octets)

 

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updated:  27-Feb-04