Fast Ethernet 48-Port Cable Pinouts; Table 35: Db-25 Connector To Db-15 (X.21) Connector Pinout - Juniper Internet Router M160 Hardware Manual

M160 Internet Router Hardware Guide
DB-25 Pin
12
17
9
1
7
8

Table 35: 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

Fast Ethernet 48-port Cable Pinouts

The Fast Ethernet 48-port PIC has four VHDCI connector ports on its faceplate (see
Figure 121), each of which accepts one of the four RJ-21 cables supplied with the
PIC (see Figure 122). Each VHDCI connector port supports 12 Ethernet ports.
274
Fast Ethernet 48-port Cable Pinouts
Signal V.35 Pin
TC AA
RC V
X
RC
A
FGND
GND B
DCD F
Signal DB-15 (X.21) Pin
FGND 1
GND 8
T 2
T 9
R 4
R
11
C 3
C 10
I
5
I 12
S 6
S 13
Description
Transmit Clock
Receive Clock
Receive Clock
Protective Ground
Signal Ground
Data Carrier Detect
Description
Protective Ground
Signal Ground
Transmit Data
Transmit Data
Receive Data
Receive Data
Request To Send
Request To Send
Data Carrier Detect
Data Carrier Detect
Receive Clock
Receive Clock