Carrier Access Access Bank II SNMP - Manual (Page 29)

2-4 9/24/01
Figure 2-2: Access Bank II - SNMP Top Cover Installation Guide
Top View
T1 LEDs (PER SPAN)
STATE MEANING
OFF Loss of T1 signal, no pulses received
GREEN Nodal Switch is in frame with frame bit error rate <10E -5
FLASHING Nodal Switch is in frame, but GREEN frame bit error rate exceeds 10E-5
RED AIS (unframed all ones) received from the T1 line
FLASHING Nodal Switch is not framed to RED the T1 line but no AIS is received
YELLOW Yellow alarm received from the T1 line
FLASHING BPV errors received on the T1 line YELLOW that are not due to B8ZS line coding
V.35 STATUS LED
STATE MEANING
OFF No T1 channels assigned to V.35 port
GREEN CD and RTS active. T1 channels assigned and operable
FLASHING V.35 in loopback to equipment GREEN
RED CD is inactive because assigned
T1 is inoperable
YELLOW CD active RTS inactive
FLASHING V.35 in loopback to T1 line YELLOW
T1 TEST LEDs (PER SPAN)
STATE MEANING
GREEN Normal operation. Trunk processing, self test, and network loopback inactive
FLASHING T1 self test local loopback GREEN passed
RED T1 self test local loopback failed
YELLOW Channels held in trunk processing for this T1
FLASHING Network loopback active for this YELLOW T1
T1 JACK R48CPIN ASSIGNMENT
1 R1 - Receive ring from T1 line
2 T1 - Receive tip from T1 line
4 R - Transmit ring to T1 line
5 T - Transmit tip to T1 line
7&8 Ground for T1 cable shields
NODAL SWITCH CONTROL SWITCHES
SWITCH FUNCTION OFF ON
SYSTEM SETUP
1 local/remote local remote
2 alarm cutoff enable alarm disable alarm
3 Option 1
4 Option 2
T1 SPAN 1 SETUP
1 Self test 1 off on
2 Network loopback 1 off on
3 T1 framing 1 Superframe Extended (SF) (also superframe called D4) (ESF)
4 T1 line coding 1 Alternative B8ZS Mark
Inversion (AMI)
5 CSU on/off 1 Detect loop Reject CSU code (normal) loopcode
T1 SPAN 2 SETUP
6 Self test 2 Off On
7 Network loopback 2 Off On
8 T1 framing 2 Superframe Extended (SF) (also superframe called D4) (ESF)
9 T1 line coding 2 Alternative B8ZS Mark
Inversion (AMI)
10 CSU on/off 2 Detect loop Reject CSU code (normal) loopcode
NODAL SWITCH ANALOG LEVELS
SWITCH FUNCTION LEVEL
Six switches Transmit = Off adds loss per channel Analog to T1
Receive = All switches off = T1 to analog 0 dB
1 Receive -2 dB Off = 2 dB lower
2 Receive -3 dB Off = 3 dB lower
3 Receive -4 dB Off = 4 dB lower
4 Transmit -2 dB Off = 2 dB lower
5 Transmit -3 dB Off = 3 dB lower
6 Transmit -4 dB Off = 4 dB lower
NODAL SWITCH ANALOG SIGNALING
SWITCH LABEL FUNCTION
Four Four switches Off adds loss switches set card sig- per card naling options Consult manual for for all 12 chan signaling option settings per voice card type
1 Option A Off = normal FXS
2 Option B Off = normal FXS
3 Option C Off = normal FXS
4 Trunk proces- When TP or test: sing (TP) On = loop busy Busy/Idle Off = loop idle
BACKPANEL CHANNEL LEDs
COLOR PER CHANNEL FUNCTION
OFF Idle (FXS ground start , tip open
GREEN Incoming call (FXS loop start
RED Outgoing call
YELLOW Answer (taking) condition
Tip & Ring
Connector
10 BASE T ACTIVITY LED
STATE MEANING
OFF No data RX/TX
GREEN RX/TX Data
RED Collision detected
10 BASE T LINK LED
STATE MEANING
OFF No signal received
GREEN Validate connection