Paradyne 3172 User manual

ACCULINK®3172 and 3174
E1 DSU/CSU
Quick Reference
Document No. 3170-A2-GL10-10

Copyright ©2001 Paradyne Corporation.
All rights reserved.
Printed in U.S.A.
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1
ACCULINK®3172 and 3174 E1 DSU/CSU
Quick Reference
Document Number 3170-A2-GL10-10
July 2001
Product Documentation Online
Complete documentation for this product is available at www.paradyne.com.
Select
Library → Technical Manuals → T1/E1 Digital Access Devices.
Select the following document:
3170-A2-GB20
ACCULINK 3172 and 3174 E1 DSU/CSU Operator’s Guide
To request a paper copy of a Paradyne document:

Within the U.S.A., call 1-800-PARADYNE (1-800-727-2396)

Outside the U.S.A., call 1-727-530-8623
Before installing the DSU/CSU, read the
Important Safety Instructions
on page 16. Also,
to ensure compliance with emissions requirements, install ferrite chokes as described in
Quick Start Procedure
on page 2.

2
Quick Start Procedure
The following procedure is for experienced DSU/CSU users who are familiar with the
317x DSU/CSU installation process and have no special requirements for their
application. See the
ACCULINK 317x E1 Data Service Unit/Channel Service Unit
Operator’s Guide for more information.
Procedure
1. The DSU/CSU is shipped with a power cable appropriate to the country of
installation. Attach the power module cord to the rear of the DSU/CSU and the other
end to a grounded AC power outlet. If you intend instead to use a 24 or –48 VDC
power supply, see the Operator’s Guide.
2. Attach the DSU/CSU network connection to the E1 network using the appropriate
cable. Attach the DSU/CSU to the customer premises equipment via the DTE and
port connectors.
3. Install ferrite chokes on cables attached to Ports 1 and 2 (Model 3172) or Ports 1–4
(Model 3174):
—Pull up on the latch to open
the ferrite choke.
—Place the ferrite choke on the
cable as close to the
DSU/CSU as possible.
—Close the choke around the
cable and press down on the
latch to fasten it.
—Secure the choke with a cable
tie.
4. If you intend to use front panel emulation, connect the cable from the PC to the
COM port on the rear panel of the DSU/CSU.
5. Power on the DSU/CSU to perform the power-up self-test.
6. During the power-up self-test, the FAIL LED flashes, then all LEDs blink twice.
When the test is complete, verify that the DSU/CSU is functional by observing that
the OK, NETWORK SIG, and DTE SIG LEDs are lit.
7. If you intend to manage the DSU/CSU with SNMP, cable either the COM or AUX
port (as appropriate for your configuration). Then, configure the SNMP
management link.
8. If you do not intend to use the DTE Drop/Insert E1 port, disable it using the
configuration procedures in
Operation and Configuration Options of the Operator’s
Guide. (The default setting for this port is Enabled.)
9. Configure the ports and channels you intend to use and assign channels to the
network interface.
97-14820-02
Ferrite Choke
Plastic
Latch
Connector
End
Tie
Wrap

3
Cabling Examples
The DSU/CSU is supplied with an AC power module. You must provide the DTE and
network cables.
Optional cables that you can order from the company are described in Pin Assignments
in the Operator’s Guide.
NOTE:
The 120Ω/75Ωswitch selects either the 120-ohm balanced network interface or the
75-ohm unbalanced network interface. The RX SHIELD switch selects either an
“open”or “earth”shield connection for the 75-ohm RX interface. (This switch must
be set to “open”when using the 120-ohm interface.)
POWER AUX PORT COM PORT DTE
PORT 3 PORT 4
PORT 1 PORT 2CLOCK IN
120ý75ý75ý
120ý
RX SHIELD
OPEN
EARTH
RX
75ý
TX NETWORK
CAUTION: AUX PORT OR COM PORT MUST NOT BE
CONNECTED TO PSTN OR E1 NETWORK
POWER AUX PORT COM PORT DTE
PORT 1 PORT 2CLOCK IN
120ý75ý75ý
120ý
RX SHIELD
OPEN
EARTH
RX
75ý
TX NETWORK
CAUTION: AUX PORT OR COM PORT MUST NOT BE
CONNECTED TO PSTN OR E1 NETWORK
98-14673a
NETWORK
TO AC
POWER
MODULE
TO DC
POWER
(OPTIONAL)
3100-F1-550
3100-F1-540
FRONT
PANEL
DSU/CSU
DSU/CSU
DSU/CSU
SERIAL
PORT
COM PORT NETWORK
COM PORT NETWORK
3100 SERIES
FRONT PANEL
EMULATION
SOFTWARE,
3100-C1-010
NOTE:
3100-F1-520
NETWORK
SNMP
MANAGER OR

4
Configuration Options
Configuration options are accessed from the Cnfig branch of the front panel menu.
DSU E1 CEPT
Stat Test
98-14606a
DevHs
STestPerf TStatLED ID
E1 Prt n
Rlpbk Lpbk Ptrns Lamp
Cnfig Ctrl
Rel ClrReg
Reset CID
LED DL
DTE
Prt1
Prt2Prt3 Prt4
PLB
DLB
RLB
LLB
Abort DCLB
DTLB
Abort Send Mon
QRSS
1in8
511
QRSS 511
NET Prt1 Prt2 Prt3 Prt4
FarNear
Prt n NET
FarNear
Cur 8Tot Intvl
Cur 24Tot Intvl
DCLB
UP DCLB DN
Edit Save
Load Edit Area From:
Choose Function:
Cust1
Activ Cust2
Activ Cust1 Cust2 Fact
User Alarm
NETDTE Port Chan Gen SNMP
Gen Trap
DTEPrt1Prt2Prt3Prt4
Clear
Dsply
Copy Prt1 Prt2 Prt3 Prt4
Port Select :
All Prt1 Prt2 Prt3 Prt4

5
Factory default configuration options are shown in boldface type in the following tables.
Table 1. DTE Interface Configuration Options
Option Factory Comments/Description
DTE Port: Enab Enables the use of the DTE Drop/Insert port.
Disab
DTE Frame: CRC4 Selects framing format.
noCRC
DTE Coding: AMI Selects line coding format.
HDB3
Extrn DLB:
(External DTE
Loopback)
Enab Allows control of DLB on external contact
closure.
Disab
Send Ones: Enab Sends all ones on channels allocated to the
network E1 on LOS, LOF, or AIS.
Disab
Table 2. Port Configuration Options (1 of 3)
Option Factory Comments/Description
Port Type: E530 Selects the port type: EIA-530A, V.35, RS449,
or X.21.
V.35
RS449
X.21
Base Rate: Nx64 Enables the port to either Nx56 or Nx64 rates.
Nx56
Net DCLB: Enab Network-initiated DCLB, allows DCLB to be
controlled by inband V.54 codes.
Disab

6
Port LB: Disab Port-initiated Loopbacks, allows Loopbacks to
be initiated through the port by the external
DTE.
DTLB
DCLB
Both
All Ones: Disab All ones sent to network (DTE) E1 when DTR
or RTS interrupted.
DTR
RTS
Both
Rcv RAI:
(Action on Received
Remote Alarm
Indication)
None Data port remains enabled, or is disabled, on
receiving RAI on the network interface.
Halt
Tx Clock: Int Selects whether the transmitted data clock is
internal (TXC) or external (XTXC).
Ext
InvertTxC:
(Invert Tx Clock) Enab Selects phase inversion of the transmit clock (TXC).
Disab
InvertData: Enab Allows the data on the port to be inverted.
Disab
EDL: Enab Specifies whether the Embedded Data Link is
enabled.
Disab
Err Rate:
(Excessive Error
Rate)
10E-4 Selects the error rate threshold for Excessive
Error Rate Alarm.
10E-5
10E-6
10E-7
10E-8
10E-9
Table 2. Port Configuration Options (2 of 3)
Option Factory Comments/Description

7
Near-end: Disab Specifies whether the device will maintain
near-end performance statistics.
Maint
Send
Both
Far-end: Disab Specifies whether the device will maintain
far-end performance statistics.
Maint
Mgmt Link: Enab Specifies whether the EDL Management Link is
enabled.
Disab
Table 3. Network Interface Configuration Options
Option Factory Comments/Description
NET Frame: CRC4 Selects framing format.
noCRC
Mgmt Link: Disab Specifies whether the FDL’s Management Link
is enabled.
SNMP
Circuit Ident: Edit Specifies the transmission vendor’s circuit
identifier.
Clear
Table 2. Port Configuration Options (3 of 3)
Option Factory Comments/Description

8
Table 4. DTE Channel Configuration Options
Option Factory Comments/Description
DTE Channels: TS16 Selects TS16 for signaling or
assigns DS0 channels on the
DTE Drop/Insert interface to
DS0 channels on the
network interface.
Assign
TS16: Data Specifies whether time
slot 16 is reserved for
signaling information or
available for data.
Rsvd
Line 1 Displays: Line 2 Displays: Meaning Comments/Description
N1 N2 N3 ......
N24: —Unassigned Function key under the channel (N1, N2, etc.)
selects the DTE channel to
assign (D1 through D24,
or –).
D1, D2 ... D24 Channel
assigned to this
DTE channel
Prt1
Prt2
Prt3
Prt4
Channel
assignedtoport
1, 2, 3, or 4