Product Description
E1 Spread Spectrum Radios
4-2
4.1.1 General
Description
A.
Service Phone Interface(EOW)
: Service phone between the stations. Insert the RJ-11 of any general
phones and dial the IDU EOW number. If there are more than one equipments in the same network, you
may dial “***” for group connection. All the phones in the network will ring.
B.
Symmetric E1 connector (RJ-48)
: 2E1: 2*RJ-48
Ε
4E1: 4* RJ-48
Ε
8E1: 8* RJ-48
Ε
16E1: 16* DB-25
(asymmetric). In this manual, we have taken 4E1 equipment as an example for easy explanation.
C.
LED
: FINE indicates normal working condition. ALM indicates critical alarming condition. RMT indicates
remote unstable condition. TEST indicates system undergoing loopback test.
Table 4-2 Definition of LED
Item
Definition
Flashes @ 4Hz
System is initializing
ON
System is initializing or system is working well
FINE(green)
OFF
Severe alarm happens (which affects normal communication)
Flashes @ 4Hz
Minor alarm happens(which doesn’t affect normal
communication)
ON
On when alarm happens(which affects normal communication)
ALM(red)
OFF No
alarm
TEST(yellow)
System is testing itself
Flashes @ 4Hz
Can’t connect with remote equipment
ON
MUX alarm happens on remote equipment
RMT(brown)
OFF
Remote equipment is working well
D.
LCD Display
: LCD display is a standard LCD panel with 16 characters in a line, 2 lines in the panel.
Display the normal working temperature; transmit/receive power, capacity, frequency, BER and system
time.
