Carrier Access SNMP manual Access Bank II Snmp Top Cover Installation Guide

Tip & Ring Connector

	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

T1 JACK R48CPIN ASSIGNMENT

1R1 - Receive ring from T1 line

2T1 - 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

3Option 1

4Option 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

	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
	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

	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

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

4Transmit -2 dB Off = 2 dB lower

5Transmit -3 dB Off = 3 dB lower

6Transmit -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

1Option A Off = normal FXS

2Option B Off = normal FXS

3Option C Off = normal FXS

4Trunk 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

Top View

Figure 2-2: Access Bank II - SNMP Top Cover Installation Guide

2-4 9/24/01