P1177S-871 User’s Manual
12
Hardware and Installation
ector
The CN15 is a double-deck DB-9 connector. The upper connector (CN15A) is for COM1
CN15
r capability on DCD and RI pins by setting jumpers (see section
2.2.1).
CN15A (COM1)
2.2.4
COM1&COM2 Conn
and the lower connector (CN15B) is for COM2. Note that the connectors (CN13 and
A) come with powe
CN15B (COM2)
2.2.5
COM3 & COM4 Connectors
The COM3 and COM4 interfaces are available through CN13 and CN14,
respectively. Each of these connectors is a 2x5 pin 2.0 pitch box header, see
table below for its pin assignments.
CN13/CN14
Pin
Pin
Signal
1
10
Data Carrier Detect (DCD)
2
11
Receive Data (RXD)
3
12
Transmit Data (TXD)
4
13
Data Terminal Ready (DTR)
5
14
Ground (GND)
6
15
Data Set Ready (DSR)
7
16
Request to Send (RTS)
8
17
Clear to Send (CTS)
9
18
Ring Indicator (RI)
Pin
Signal
1
Data Carrier Detect (DCD)
2
Data Set Ready (DSR)
3
Receive Data (RXD)
4
Request to Send (RTS)
5
Transmit Data (TXD)
6
Clear to Send (CTS)
7
Data Terminal Ready (DTR)
8
Ring Indicator (RI)
9
Ground (GND)
10
NC