HORNER HE693SNPCBL Product Specifications And Installation Data

1

DESCRIPTION

The HE693SNPCBL SNP to RS-232 Adapter is equipped with two ports. The 15-pin SNP port plugs directly into the
PLC Programmer Port on the CPU rack power supply. Power to the SNP Adapter is supplied directly from the
programming port (maximum 100mA@5VDC). The 9-pin RS-232 port connects to any RS-232 device.
(47.5mm)
The SNPCBL has a 90° cable exit for simplified cable routing. The SNPCBL adapter head has a RX (Receive) LED
and a TX (Transmit) LED; both LEDs are green when active.
The pin-out for the SNPCBL Adapter serial ports is provided as follows. The direction indicated is with respect to the
adapter. The following pin-outs are chosen to allow direct connection (using a straight through or 1 to 1 cable) to the
IBM PC/AT. Nearly ALL of the IBM compatible computers equipped with a 9-pin RS232 port provide a pin-out
compatible with that shown in Table 2.
Table 1 – Fifteen-Pin Port
Pin # Signal Name
1,3,7
[0V] Ground
2,5
[+5V] VCC
4
No Connection
6
[CTS-] Clear to Send
[RTS+] Request to
8
Send
9,10
[TXD-] Transmit Data
11
[TXD+] Transmit Data
12
[RXD-] Receive Data
13
[RXD+] Receive Data
14
[CTS+] Clear to Send
15
[RTS-] Request to Send
06 July 2004
1.87"
RX TX
1.70"
(43.2mm)
Figure 1 – SNPCBL Adapter
Direction
N/A
N/A
N/A
Input
Output
Output
Output
Input
Input
Input
Output
SNP to RS-232 Adapter
Product Specifications
and Installation Data
6'
(1.83m)
001ACC005
Table 2 – Nine-Pin Port
Pin # Signal Name
[DCD] Data Carrier
1*
Detect
2
[TXD] Transmit Data
3
[RXD] Receive Data
5
[GND] Ground
6*
[DSR] Data Set Ready
7
[CTS] Clear to Send
8
[RTS] Request to Send
9*
[RI] Ring Indicate
* Shorted together and pulled high with 1K ohm
pull-up resistor.
Direction
Input
Output
Input
N/A
Input
Input
Output
Input
MAN0344-03