24
An EIA-530-A-to-X.21 adapter for the user data port must have the following
connections:
2
14
3
16
17
9
4
19
8
10
7
24
11
2
9
4
11
6
13
3
10
5
12
8
7
14
TD-A
TD-B
RD-A
RD-B
RXC-A
RXC-B
RTS-A
RTS-B
RLSD-A
RLSD-B
SIG. COMMON
TT-A
TT-B
TD-A
TD-B
RD-A
RD-B
RXC-A
RXC-B
RTS-A
RTS-B
RLSD-A
RLSD-B
SIG. COMMON
TT-A
TT-B
EIA-530-A
SIGNAL
DB25
PLUG
DB15
SOCKET
X.21
SIGNAL
01-16987
Summary of Contents for iMarc DSL 9720 CSU/DSU
Page 32: ...9720 A2 GN10 10...
