Appendix I - X.21/V.11 Network Crossover Cable - Black Box Echo Series User Manual

Echo 2 Mbps Multiplexer

Appendix I - X.21/V.11 Network Crossover Cable

MUX 15 Way Male
Connector
UNC 4/40 Screws
Notes:
42
SALES: 0118 965 5100
15 Way Multiplexer DCE
to DCE or Network DCE
ONWARD LINKING Crossover Cable
1
8
4
11
2
9
5
12
3
10
7
14
1 V11 Clocks X(A), X(B) from the Nx64 port are generators, and should not be connected.
The channel port should be configured to use external clock for both external transmit and
external receive clocks.
2 V11 Male for connection to NTU must have M3 Screws. Mux end has 4/40 screws unless
National Regulations permit the use of UNC 4/40. Each cable end must be clearly
identifiable.
3 Dashed lines show wires to be twisted pairs.
4 Cable type: Belden 9508, 8 twisted pair overall screen (or equivalent). Maximum length
100 Metres.
5 Connector shell and termination as specified in EMC section, Appendix C, on page 34 of
this manual.
V.11 15 Way Male
Connector
2
M3 Screws
1 SHIELD
8 G
2 T(A)
9 T(B)
4 R(A)
11 R(B)
3 C(A)
10 C(B)
5 I(A)
12 I(B)
6 S(A)
13 S(B)
Type at Network
Connector
(Normal Use)
-
Common Return
Generator
Generator
Load
Load
Generator
Generator
Load
Load
Load
Load