M120 Fast Ethernet Pic 48-Port Cable Pinouts; Table 44: Db-25 Connector To Db-15 (X.21) Connector Pinout - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide

Table 44: DB-25 Connector to DB-15 (X.21) Connector Pinout

DB-25 Pin
1
7
2
14
3
16
4
19
8
10
17
9
Related
Documentation

M120 Fast Ethernet PIC 48-Port Cable Pinouts

254
All manuals and user guides at all-guides.com
Signal
FGND
GND
T
T
R
R
C
C
I
I
S
S
Maintaining M120 PICs and PIC Cables on page 112
Installing an M120 PIC Cable on page 166
M120 PICs Description on page 15
The Fast Ethernet 48-port PIC has four VHDCI connector ports on its faceplate (see
Figure 99 on page 255), each of which accepts one of the four RJ-21 cables supplied with
the PIC (see Figure 100 on page 255). Each VHDCI connector port supports 12 Ethernet
ports.
DB-15 (X.21) Pin Description
1 Protective Ground
8 Signal Ground
2 Transmit Data
9 Transmit Data
4 Receive Data
11 Receive Data
3 Request To Send
10 Request To Send
5 Data Carrier Detect
12 Data Carrier Detect
6 Receive Clock
13 Receive Clock
Copyright © 2010, Juniper Networks, Inc.