ASCEND COMMUNICATIONS, INC.
MULTIBAND PLUS T1/PRI
Card Type |
T1 CSU |
Chip Set |
Unidentified |
I/O Options |
AC power connector, power switch, serial port, T1 network interface via RJ-48 connector (2), Alarm relay terminal block, palmtop port via RJ-12 connector (2), data port via 44-pin connector (4) |
Wiring Type |
RJ-48 shielded twisted pair |
T1 Transfer Rate |
1.544Mbps |
T1 Protocol |
AMI, B8ZS |
Frame type |
D4, ESF |
Data Bus |
External |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
AC power connector |
CN1 |
44-pin DTE port 3 |
CN7 |
Serial port |
CN2 |
44-pin DTE port 4 |
CN8 |
44-pin DTE port 1 |
CN3 |
RJ-48 network interface - line 1 |
CN9 |
RJ-12 palmtop connector |
CN4 |
RJ-48 network interface - line 2 |
CN10 |
RJ-12 palmtop connector |
CN5 |
Alarm relay terminal block |
CN11 |
44-pin DTE port 2 |
CN6 |
Power |
SW1 |
DIAGNOSTIC LED(S) | |||
LED |
Color |
Status |
Condition |
PW |
Green |
On |
Power is on |
PW |
Green |
Off |
Power is off |
ER |
Red |
On |
Self test in progress |
ER |
Red |
Blinking |
Device is not functional due to fault or error |
ER |
Red |
Off |
Device is functional |
P1 |
Green |
On |
Channel 1 is active |
P1 |
Green |
Blinking |
CSU is in diagnostic mode. BERT, auto-BERT, remote loopback, or local loopback test in progress |
P1 |
Green |
Off |
Channel 1 is inactive |
P2 |
Green |
On |
Channel 2 is active |
P2 |
Green |
Blinking |
CSU is in diagnostic mode. BERT, auto-BERT, remote loopback, or local loopback test in progress |
P2 |
Green |
Off |
Channel 2 is inactive |
P3 |
Green |
On |
Channel 3 is active |
P3 |
Green |
Blinking |
CSU is in diagnostic mode. BERT, auto-BERT, remote loopback, or local loopback test in progress |
P3 |
Green |
Off |
Channel 3 is inactive |
P4 |
Green |
On |
Channel 4 is active |
P4 |
Green |
Blinking |
CSU is in diagnostic mode. BERT, auto-BERT, remote loopback, or local loopback test in progress |
P4 |
Green |
Off |
Channel 4 is inactive |
LS1 |
Red |
On |
Loss of synchronization detected on network line 1 |
LS1 |
Red |
Off |
Loss of synchronization not detected on network line 1 |
RA1 |
Red |
On |
Improper receive signal or no signal detected on network line 1 |
RA1 |
Red |
Off |
Improper receive signal or no signal detected on network line 1 |
1S1 |
Yellow |
On |
Blue alarm condition detected. All ones (AIS) received from network |
1S1 |
Yellow |
Off |
Blue alarm condition not detected on network line 1 |
RL1 |
Yellow |
On |
Device in line 1 loopback diagnostic mode |
RL1 |
Yellow |
Off |
Device not in line 1 loopback diagnostic mode |
LL1 |
Unidentified |
Off |
Not used |
LA1 |
Green |
On |
Link is active on line 1 |
LA1 |
Green |
Blinking |
Device unable to establish line 1 communications, possible configuration error |
LA1 |
Green |
Off |
Link is inactive |
LS2 |
Red |
On |
Loss of synchronization detected on network line 2 |
LS2 |
Red |
Off |
Loss of synchronization not detected on network line 2 |
RA2 |
Red |
On |
Improper receive signal or no signal detected on network line 2 |
RA2 |
Red |
Off |
Improper receive signal or no signal detected on network line 2 |
1S2 |
Yellow |
On |
Blue alarm condition detected. All ones (AIS) received from network |
1S2 |
Yellow |
Off |
Blue alarm condition not detected on network line 2 |
RL2 |
Yellow |
On |
Device in line 2 loopback diagnostic mode |
RL2 |
Yellow |
Off |
Device not in line 2 loopback diagnostic mode |
LL2 |
Unidentified |
Off |
Not used |
LA2 |
Green |
On |
Link is active on line 2 |
LA2 |
Green |
Blinking |
Device unable to establish line 2 communications, possible configuration error |
LA2 |
Green |
Off |
Link is inactive. Line 2 disabled |