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Table 41: DB-25 Connector to DB-15 (X.21) Connector Pinout for the M40e
Router
(continued)
Description
DB-15 (X.21) Pin
Signal
DB-25 Pin
Request To Send
3
C
4
Request To Send
10
C
19
Data Carrier Detect
5
I
8
Data Carrier Detect
12
I
10
Receive Clock
6
S
17
Receive Clock
13
S
9
Related
Documentation
Maintaining M40e PICs and PIC Cables on page 139
•
•
Installing a PIC Cable in an M40e Router on page 204
•
M40e PICs Description on page 12
M40e Fast Ethernet PIC 48-port Cable Pinouts
The Fast Ethernet 48-port PIC has four VHDCI connector ports on its faceplate (see
Figure 132 on page 296), each of which accepts one of the four RJ-21 cables supplied with
the PIC (see Figure 133 on page 297). Each VHDCI connector port supports 12 Ethernet
ports.
Figure 132: Fast Ethernet 48-port PIC
Copyright © 2010, Juniper Networks, Inc.
296
M40e Multiservice Edge Router Hardware Guide
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