3-10
Installation and Replacement
Installing The Vanguard 3400 Series
This table describes the DB25 connector pinouts for port 1:
Port 4
This port has an RJ-45 connector. Use Port 4 as the CTP for Use Port 4 as the CTP
for communicating with, configuring, monitoring, and for coldloading the node.
Figure 3-5 shows the pin numbers for port 4.
Figure 3-5. Port 4 Pin Numbers
DB25 V.24 Pinouts (DCE)
Pin
ITU Circuit
I/O
Signal Name
1
---
-----
Protective Ground
2
103
INPUT
Transmitted data
3
104
OUTPUT
Received data
4
105
INPUT
Request To Send
5
106
OUTPUT
Clear To Send
6
107
OUTPUT
Data Set Ready
7
102
-----
Signal Ground
8
109
OUTPUT
Data Carrier Detect
14
---
INPUT
Data Restraint Out
15
114
OUTPUT
Transmitted Clock
16
---
-----
N/C
17
115
OUTPUT
Received Clock
18
---
INPUT
External Rx Clock
20
108/2
INPUT
Data Terminal Ready
21
---
-----
N/C
22
125
OUTPUT
Ring Indicator
24
113
INPUT
External Tx Clock
25
142
INPUT
Make Busy
Pin 8
Pin 1
Summary of Contents for 3400 Series
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