
TRANSPORT
®
PRISM 4151
Configuration Guide
45-00105
3.0
Front Panel
PRISM 4151
TEST LOOP
TRANSPORT
ALARMNETLOOPTEST
®
POWER
21 43 5 6 7
Front Panel Description
Index Item Function
1 TEST
(button)
2 LOOP
(button)
3 TEST This 3-color LED is green when BERT is on with no errors. It flashes amber when the unit is transmitting loop or unloop code.
4 LOOP This amber LED illuminates when the unit is in any loop condition.
5 NET This 3-color LED illuminates green when the unit is in frame sync. It is red when the unit is out of sync and/or Loss of Signal.
6 ALARM This red LED illuminates when the unit is in an active alarm condition.
7 POWER This green LED illuminates when power is applied to the unit.
When this button is pushe d once, the un it transmits f i ve second s of V.54 loop code out to the ne twork. Th e indicator bl inks amber
during transmission of the loop code. When the V.54 loop sequence is finished, a 511 BERT pseudo rendom sequence is
transmitted. 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 five
seconds of V.54 loop down code and returns to normal operating mode. The TEST indicator is then turned off.
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.
It is red when the BERT is on and is receiving errors or is out of pattern sync.
Network Interface
Line Rate: 56 and 72 kbps
Input Signal: 0 to -45 dB ALBO
Connection: RJ-48C jack
Output Signal: 3.32 V (±10%) base-peak into
Transient Voltage: 1000 V protection , fus ed in/out
Jitter Control: per 62310
Timing Source: Internal, recovered line clock,
Equipment
Data Rate: Synchronous 56K DDS I , 64K
Antistream Timer: Off, 10, 30, or 60 seconds
DTE Clocking: Internal or External
DTE Connection: 34-pin V.35 (CCITT)
Management Interfaces
Connection: 8-pin modular (RS-232)
135 Ω with protection per 62310
external DTE
Interface
DDS II
Supervisory Port
Specifications
Data Rates: 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, ISO.IEC 8802-3
SNMP/TELNET/Token Ring
Connection: 8 -pin modular (RJ-45)
Network Protocol: TCP/IP based networks
Data Rate: 16 Mbps
Compatibility: Type 3 UTP, ISO/IEC 8802-5
Diagnostics
Loopbacks: V.54 (receive and send), altern at -
ing loop, latchin g loop
BERT: 511 pattern
Alarms
Activation: Programmable th resholds
Reporting: Front panel LEDs, call on
alarm (COA), SNMP traps
Power
115 VAC: 100 mA, 12 W max, 30 BTU max
Mechanical
Mounting: Desktop or rack
Dimensions: 12 inc hes (30.48 cm) wide
2 inches (5.08 cm) high
9 inches (22.86 cm) de ep
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 8 5 ° C)
Humidity: 95% maximum, non-condensing

115 VAC
60 HZ
Rear Panel
SUPVSLIPLAN
V.35
NET
S2 S1
Switch S1
S1 -1: Antistream timer set to 30 seco nds.
Dn: Disable
Up: Enable
S1 -2: Activates the V.54 loop/unloop.
Dn: Enable
Up: Disable
S1 -3: Activates the circuit assu rance.
Dn: Disable
Up: Enable
S1 -4:Establishes the loop mode.
Dn: Bidir
Up: Unidir
S1-5: Not Used
S1-6: Not Used
S1-7: Not Used
S1-8: Not Used
Factory defaults for all switch
settings are shown underlined
.
S2-1: Boot mode.
Dn - Switches
S2-2: DDS mode as DDS I (56 kbps) or DDS II
(64 kbps).
Dn - 64 kbps
S2-3 S2-4 Timing Source
Dn
Dn Up Internl
Up Dn DTEl
Up Up Not Used
S2-5: CTS Delay.
Dn: Short
S2-6: RTS, CTS, DCD Handshake.
Dn: Force True
S2-7: Remote/Local loops on the DTE interface.
Dn: Disable
S2-8: DTE Alarm.
Dn: Disable
Rear Panel Pinouts
LAN
Pin
Ethernet
1 Data Out DCD Out DTR Out Data Out
2 Data Out CTS Out RTS Out Data Out
3 Data In Data Out Frame Gnd Frame Gnd
4 Data In Data Out Data Out
5 Data In Data In Data In
6 Data In Data Out Signal Gnd Signal Gnd
7 RTS In CTS In Data In
8 DTR In DCD In Data In
LAN
Token Ring
SUPV/ SLIP
Terminal
SUPV/ SLIP
Modem
Network
Switch S2
Up - Saved Configuration
Up - 56 kbps
Dn Network
Up: Long
Up: Normal
Up: Enable
Up: Enable
Port Pinouts
Common Name
Frame Ground A
Transmit Data P, S
Request to Send C
Data Set Ready E
Signal Ground B
Data Carrier Detect F
Receive Clock V, X
Terminal Timing U, W
Transmit Clock Y, AA
Local Loopback J
Data Term Ready H
Remote Loopback BB
Data
V.35
34- pi n
Receive Data R, T
Clear to Send D
Line Loop
Data Loop
V.5 4 Loo p
Local Loop
Loops
DTE
DTE
DTE
TRANSPORT
127 Jetplex Circle
Madison, Alabama 35758
Sales and Marketing
800-926-0085
205-772-3770
info@txport.com
Returns/RMA
800 -92 6-0085, ext. 2227
Technical Support
800-285-2755
205-772-3770
support@txport.co m
NET
NET
NET
®

TRANSPORT
®
34-00258-A3.01
45-00105-A3.01
Addendum
Document:
Date:
Pow er
PRISM 4151 Reference Manual and Configuration Guide
June 12, 1998
The power rating, as presented on pages 1-2 of the manual and in the Specifications
section of the configuration guide, has been revised as follows.
AC: 115 VAC, 140 mA, 8 W maximum, 27 BTU maximum
PRISM 4151 Page 1 of 1