Raisecom
RC3000-15 (P100R001) Hardware Description
13 Cables
Raisecom Proprietary and Confidential
Copyright © Raisecom Technology Co., Ltd.
208
Figure
HDB26M
PIN
DB25F PIN Definition Channel
Direction
DTE→DCE DCE→DTE
12
15, 17 (two
PINs are
short
connected)
RXC
√
2
24
TXC
√
19, 20
7
SG
4
Short
connect
ed
RTS
√
5
CTS
√
6
Short
connect
ed
DSR
√
8
DCD
√
20
DTR
√
CBL-V24H-HDB26M/2DB25F-D
Table 13-18 list PIN definitions of the CBL-V24H-HDB26M/2DB25F-D cable.
Table 13-18
PIN definitions of the CBL-V24H-HDB26M/2DB25F-D cable
DB25 female interface
HDB26 male interface
Definiti
on
PIN
PIN
Remarks
No. 1
way
FGND
1, connected to the shell
——
Connected to the
shell
RD_1
3
<——
8
TD_1
2
——>
18
RC_1
17
<——
23
TC_1
24
——>
15
DTR_1
20
——>
17
PINs 8 and 20 are short-
circuited at DB25
female connector side.
GND
7
——
20
PINs 20, 21, and 22 are
short-circuited at DB26
male connector side.
DSR_1
6
<——
7
RTS_1
4
——>
16