CTC Union TRM01, Руководство пользователя

Страница: 24 / 48

Chapter 3. Data Modules
20
TRM-01 APR 2000
3.6 X.21 Data Module
When the
TRM-01
is ordered with an TRM01/X21 option, an
FT1/530(public) card is supplied and an optional X.21 adapter cable may be
ordered or assembled according to the following table. The adapter cable
follows the pin out standards shown below exactly.
Abbreviation HDB26
PIN#
DB15
PIN#
X.21
Circuit
FG 1 ↔ 1 Shield
SG 7 ↔ 8 Ground
TD(A)
TD(B) 2
11
↔
↔
2
9 Transmit(A)
Transmit(B)
RD(A)
RD(B) 3
21
↔
↔
4
11
Receive(A)
Receive(B)
RTS(A)
RTS(B) 4
13
↔
3
10
Control(A)
Control(B)
DCD(A)
DCD(B) 8
26
↔ 5
12
Indication(A)
Indication(B)
ETC(A)
ETC(B) 24
16 ↔
↔
7
14
Ext. Timing(A)
Ext. Timing(B)
RC(A)
RC(B) 17
25 ↔
↔
6
13
Signal Timing(A)
Signal Timing(B)
Table 3-4 : HDB26 –DB15 adapter cable pin out for X.21