Verilink 3131 (CG) (CG) Configuration/Installation Guide - Manual

Front Panel Description
Index Item Function
1 TEST When this button is pushed once, the unit transmits five seconds of inband loop code out to the network (either LLB or V.54
depending on Switch S1-7). The indicator blinks green during transmission of the loop code. If Switch S2-8 is set to Clear Loop,
the data from the DTE is passed to the network and data from the network is passed to the DTE. The TEST indicator is solid
green in this mode. If Switch S2-8 is set to BERT, the test pattern last selected is transmitted toward the network. The received
pattern is compared and if it is error free, the TEST indicator remains green. If pattern errors are detected, the TEST indicator
turns red for a minimum of one second. The data ports are looped back toward the DTE during the test. If the TEST button is
pushed again, the unit transmits 5 seconds of inband loop down code and returns to normal operating mode. The TEST indicator
is then turned off.
2 LOOP When this momentary pushbutton is pressed once, the unit activates a line loopback, looping the network receive data back to the
network, and looping the data from the DTE ports back to the DTE. The LOOP indicator is lit while the unit is in loop. If pushed
again, the unit clears the loop and turns off the LOOP indicator.
3 TEST This 3-color LED flashes green when the unit is transmitting loop code. It is green continuously when BERT is on with no errors
or the unit is in a clear test. It is red when the BERT is on and is receiving errors.
4 LOOP This amber LED light continuously when the unit is in a loop mode.
5 NET This 3-color LED is green when the unit is in frame sync. It is amber when the unit is receiving a yellow alarm from the far end.
It is red when the unit is out of frame sync and/or LOS.
6 ALARM This red LED lights continuously when the unit is in an active alarm condition. It flashes if the switch configuration is invalid.
7 POWER This green LED lights continuously when power is applied to the unit.
3131
Configuration Guide
Part Number 45-00104
Rev 1.0
Front Panel
Specifications
Network Interface
Line Rate: 1.544 Mb/s (
±
50 ppm)
Line Framing: D4 or ESF
Line Code: AMI or B8ZS
Input Signal: 0 to - 27 dB ALBO
Connection: RJ-48C jack, 100 W (
±
5%)
Output Signal: 3.0 V (
±
10%) base- peak into
100
Ω
with protection
Line Build Out: 0, -7.5, - 15, -22.5 dB attenuation
Transient Voltage: 1000 V protection, fused in/out
Jitter Control:
Per TR 62411 and T1.403
Timing Source: Internal, recovered line clock,
external DTE, T1 DTE
Ones Density: B8ZS, Nx 56 bit stuffing,
alternate fill; TR62411
Equipment Interface
DTE Port: V.35, 34-pin
Data Rate: Synchronous, N x 56 kps or
N x64 kbps (where N = 1 to 24)
Clocking: Internal, External, Oversample
Data Invert: Independent selection each port
Management Interfaces
Supervisory Port
Connection: 8 - pin modular (RS-232)
Data Rates: 1.2, 2.4, 9.6, and 19.2 kbps
Diagnostics
Performance: Monitoring per TR54016, T1.403
Network Loops: Line or payload loopback
Fractional Loop: Responds to inband V.54 loop
DTE Port Loops:Bidirectional loop to DTE or Net
BERT: 511 and clear test patterns toward
network or DTE ports
Alarms
Activation: Programmable thresholds
Reporting: Front panel LEDs, Call On
Alarm (COA)
Power
115 VAC: 0.12 A, 12 W max, 41 BTU max
Mechanical
Mounting: Desktop or horizontal rack
Dimensions: 12" (30.48 cm) wide, 1.75" (53.34
cm) high, 9" (22.86 cm) deep
Weight: 4 pounds (1.814 kg)
Environmental
Operating Temp: 32
°
to 122
°
F (0
°
to 50
°
C)
Storage Temp: -4
°
to 185
°
F (-20
°
to 85
°
C)
Humidity: 95% maximum (non-condensing)
Standards
TR 62411: December 1990
TR 54016: September 1989
ANSI T1.403: 1989
TR 54019A: April 1988
Industry Listings
FCC Compliance: Part 15, Subpart B, Class A
FCC Part 68 Cert: FXKUSA-22083-DE-N
NRTL: 1459, 2 nd Edition
IC/CSO3 Cert: 1653 6531 A
CSA Certified: LR 62298 (22.5 NO 22.5-M90)
ALARM NET LOOP TEST
TEST LOOP
POWER
2 1 4 3 5 6 7
3131
T R A N S P O R T
®
T R A N S P O R T
®