NDA-24296 CHAPTER 2
Pag e 77
Revision 1.0
PH-IO24
Input/Output Controller

PH-IO24

Inpu t/Outp ut Contr o ller

1. General Function
The PH-IO24 (IOC) circuit card supplies the system with a serial interface, which conforms to RS-232C,
between external equipment such as the Maintenance Administration Terminal (MAT), Station Message
Detail Recording System (SMDR), Message Center Interface (MCI), Property Management System
(PMS). The rel at ion s h ip betw ee n t he IOC card and t he asso ci at ed car ds is a s foll ows , wh e n the CPU i s in
dual configuration.
Note: Firmw a re SP- 3 290 IO 2 4 LV2 P ROG -A i s requ ire d i n t h e Ho t el sy s te m f o r P M S and Hotel Print er.
Figure 2-27 Location of PH-IO24 (IOC) Card in the System
CPU
BOARD
#0
FDD/HDD #0
GT #1 GT #0
MISC
EMA
MISC/IOC
IOC
CPU
I/O
BOARD
#1
MISC I/O B US
FDD/HDD #1
I/O
(RS -232C ) x4 posts fo r MAT, SMD R , M CI, P M S, P RT