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. 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 button 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 lights continuously when the unit is in any loop condition.
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.
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.
PRISM 3101/3102
Configuration Guide
Part Number 45-00091
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 TR62411 and T1.403
Timing Source:
Internal, recovered line clock,
external DTE
Ones Density:
B8ZS, Nx 56 bit stuffing,
alternate fill; TR62411
Equipment Interface
DTE Ports:
3101 single and 3102 dual port
Compatibility:
EIA 530 (RS-422), female DB-25
CCITT V.35, female 34- pin
Data Rate:
Synchronous, Nx 56 kb/s or
N x 64 kb/s (where N = 1 to 24);
independent selection each port
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
SLIP Port
Connection:
8 - pin modular (RS-232)
Data Rates:
1.2, 2.4, 9.6, and 19.2 kbps
SNMP /Telnet Ethernet (option)
Connection:
8 - pin modular (RJ-45)
Network Protocol: TCP/IP based networks
Data Rate:
10 Mbps
Compatibility:
10BASE -T
SNMP /Telnet Token Ring
Connection:
8 - pin modular (RJ-45)
Network Protocol: TCP/IP based networks
Data Rate:
4 or 16 Mbps
Compatibility:
Type 3 Unshielded Twisted Pair
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:
Multiple test patterns toward
network or DTE ports
Alarms
Activation:
Programmable thresholds
Reporting:
Front panel LEDs, call out on
alarm (COA), SNMP TRAPs
Power
110 VAC:
0.2 A, 24 W max, 82 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:
8 pounds (1.814 kg)
ALARM
NET
LOOP
TEST
TEST
LOOP
POWER
2
1
4
3
5
6
7
PRISM 3101
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