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ADPRO FastTrace by Xtralis
Installation and User Manual
Doc 11168_12
29
3.2.2 COMMS 2
COMMS 2 is used to connect to modems and terminal adaptors to support PSTN and ISDN links
at data rates up to 230 kbps. COMMS 2 can also be used to access the FastTrace setup menu
and to upgrade the software when connected to a PC or laptop computer via a null-modem cable
link. The 9-pin D connector pins are shown below.
Table 3: Comm Port 2 Connection
10
I
11
O
12
I
13
I
14
O
SCT
15
I
DCE transmit clock
16
I
RXC
17
I
DCE receive clock
18
I
19
O
DTR
20
O
Data terminal ready
RL
21
O
Remote loopback
RI
22
I
Ring Indicator
23
I
TXC
24
O
DTE Transmit Clock
25
|
Name
Pin
Direction
Description
DCD
1
|
Carrier Detect
RXD
2
|
Receive Data
TXD
3
O
Transmit Data
DTR
4
O
Data Terminal Ready
GND
5
-
Ground
DSR
6
|
Data Set Ready
RTS
7
O
Request to Send
CTS
8
|
Clear to Send
RI
9
|
Ring Indicator
V.24 Name
Pin
Direction
V.24 Description
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