46
AR Router
C613-03031-01 REV E
The Main System
Main features of the AT-AR740 base CPU card are:
■
80 MHz RISC processor.
■
1 MByte of EPROM.
■
16 MBytes of synchronous DRAM.
■
6 MBytes of flash memory.
■
128 KBytes of battery backed SRAM.
■
2 x 10/100 Mbps autosensing Ethernet LAN ports.
■
2 RS-232 asynchronous serial ports.
■
2 PIC bays.
■
1 hot swappable
Network Service Module
(NSM) bay.
■
1 MAC slot for a MAC compression/encryption card.
■
1 PAC slot for PAC compression and/or encryption cards.
■
Redundant power supply (RPS) and -48V DC power supply options.
Figure 19 on page 46 shows the location of the main components on the AT-
AR740 base unit. There are no user-selectable jumpers or DIP switches.
Figure 19: Location of main components on the AT-AR740 base CPU card.
740CPU
LED
POWER
NSM BAY
SLIDE-IN BAY 0
SLIDE-IN BAY 1
Clr
Sec
Err
Sys
D
Run
Act
Pwr
LED
LED
LED
LED
LITHIUM BATTERY
DO NOT
DISPOSE IN FIRE
NSM CONNECTOR
LED
RUN
LED
SYSTEM
LED
CLEAR
LED
SECURITY
PORT 0
RJ45
PORT 1
RJ45
LED
LED
LED
BOOT EPROM 1
BOOT EPROM 0
MAC CARD SLOT
PAC SLOT
PAC SLOT
PIC BAY 1
PIC BAY 0
ETHERNET 0
ETHERNET 1
Hot
Swap
Button
Swap
In
Use
LNK/
ACT
100
LNK/
ACT
100
STATUS LEDs
+12V
0V
0V
-12V
+5V
+5V
+12V
0V
0V
0V
-12V
+5V
+5V
THREAD MOUNTS FOR PAC PILLARS
