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M160 Internet Router Hardware Guide
DB-25 Pin Signal V.35 Pin Description
12 TC
AA
Transmit Clock
17 RC
V
Receive Clock
9RC
X
Receive Clock
1FGND
A
Protective Ground
7GND
B
Signal Gr ound
8 DCD F Data Carrier Detect
Table 35: DB-25 Connector to DB-15 (X.21) Connector Pinout
DB-25 Pin Signal DB-15 (X.21) Pin Description
1FGND1
Protective Ground
7GND8
Signal Gr ound
2T2TransmitData
14T9TransmitData
3
R4
Receive Data
16
R
11 Receive Data
4
C3
Request To Send
19 C 10
Request To Send
8
I
5 Data Carrier Detect
10
I
12 Data Carrier Detect
17 S 6
Receive Clock
9S13
Receive Clock
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-por t Cable Pinouts