Filter
Top Products
Cables and Pin Assignments
E-4
7112-A2-GB20-10March 1998
Serial Crossover Cable
Use a serial crossover cable to connect an external modem to the DSU/CSU’s
COM port.
NOTE:
The Pin 17 to Pin 24 crossovers are not required and have no effect with the
Model 7112.
Pin 1
Pin 14
Pin 13
Pin 25
Pin 1
Pin 14
Pin 13
Pin 25
P2
Plug
Chassis Ground
TXD
RXD
RTS
CTS
DSR
Signal Ground
CD (RLSD)
TXC
RXC
DTR
XTXC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Pin
98-15811
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
P1
Chassis Ground
TXD
RXD
RTS
CTS
DSR
Signal Ground
CD (RLSD)
TXC
RXC
DTR
XTXC
Pin P2
P1
Plug