T200 IDSL OFFICE CHANNEL UNIT - REMOTE (IDSL OCU-R)
INSTALLATION & TURNUP
1. Select desired options with front panel DIP switches SW1 and SW4.
2. Insert the IDSL OCU-R into its designated slot ensuring the edge connector seats firmly into the
backplane.
3. After insertion the IDSL OCU-R will run a self-test and synchronization phase during which all LEDs
undergo an On/Off sequence. Refer to
Status LEDs
section for descriptions.
4. After synchronization, which may take up to 50 seconds, the following LED indication will show:
■
SYNC LED - Green.
■
All other LEDs will be Off until network occurrences cause them to turn On.
If LEDs in step 4 are as noted, proceed with loop testing per specifications.
If LEDs in step 4 are in any other configuration, refer to
Troubleshooting Guide
section.
CAUTION:
This product is intended for installation
in a restricted access location in a Type “B” or “E”
enclosure only.
Max input current @ max load = 32 mA @ -48 VDC
with an output of 6 mA @ 10 VDC.
WIRING CONNECTIONS
HARDWARE VERSUS SOFTWARE PROVISIONING
When SW1 and SW4 are used for option selection the options take effect when the card is inserted in the
mounting. Subsequent software provisioning will override hardware options. Depressing the LBK
pushbutton for five seconds will toggle between the two option sets.
INSERTION LOSS MEASUREMENTS
IDSL Design Limits at Traditional 4-Wire
Frequencies.
TYPICAL APPLICATION
JOB
A
ID
61220010L2-22C
0111
IDSL OCU-R
CLEI: NCT1TX2B_ _
T-Carrier
Channel Bank
2-Wire Loop
4-Wire Customer
Interface
T/R Pair
Customer Premises
U-BR1TE
IDSL
OCU-R
DSU/CSU
Customer
4-Wire Qualifying
IDSL Loss
Rate
Frequency (kHz)
Limit (dB)
2.4
1.2
14
2.4/SC
1.6
14.5
4.8
2.4
16
4.8/SC
3.2
17
9.6
4.8
19
9.6/SC
6.4
20.5
19.2
9.6
24
19.2/SC
12.8
27
56
28.0
35
56/SC & 64
36.0
36
STATUS LEDs
SYNC
●
GREEN
Loop synchronized.
●
RED
Loop not synchronized.
CRC
●
ON
Errors on 2-wire loop.
NO DSU
●
ON
Customer DSU/CSU not responding/installed.
AP
●
ON
Remotely provisioned option set in effect.
✷
FLASHING Remote control link active.
●
●
OFF
DIP switch option set in effect.
NTWK LBK
●
ON
OCU loopback toward network exists.
✷
FLASHING Channel loopback at CSU exists.
CUST LBK
●
ON
IDSL OCU-R in loopback toward customer.
✷
FLASHING Loopback toward the customer at the ADTRAN U-BR1TE.
NOTE:
All LEDs OFF indicates loss of power or other malfunction.
FRONT PANEL OPTION FEATURES
FRONT PANEL LBK PUSHBUTTON SW2
Loopback pushbutton SW2 initiates loopback tests without CO or test center coordination.
Refer to LBK Pushbutton in
Testing
section. Depressing the LBK pushbutton for five seconds
will toggle between hardware and software option settings. The AP LED provides indication.
FRONT PANEL DIP SWITCH SW4
SC
ON
Enables secondary channel when 56k or below data rate is selected.
64
ON
Selects 64 kbps data rate (SC must be set to OFF).
56
ON
Selects 56 kbps data rate.
19.2
ON
Selects 19.2 kbps data rate.
9.6
ON
Selects 9.6 kbps data rate.
4.8
ON
Selects 4.8 kbps data rate.
2.4
ON
Selects 2.4 kbps data rate.
SW56 ON
Selects switched 56 data rate (SC must be set to OFF).
FRONT PANEL DIP SWITCH SW1
-10 dB ON
Selects -10 dB AMI signal across 4-wire interface to customer. (Typical installation)
OFF Selects 0 dB AMI signal across 4-wire interface to customer. (Extended demarcation
installation)
QM
ON
Enables Quality Monitoring. Excessive errors will cause automatic blockage of data.
OFF Quality Monitoring disabled.
EC
ON
Enables Error Correction, valid only at 19.2 kbps or lower.
OFF Error Correction disabled.
LLEN ON
Enables response to latching loopbacks.
OFF Disables response to latching loopbacks.
FRONT PANEL DB-9 CONNECTOR
Provides an RS-232 interface for connection to a VT100 or compatible terminal or test device.
COMPATIBLE HOUSINGS
Any standard T400/T200 housing, or these ADTRAN housings:
Span Power Applications
■
Single mount housing, P/N 1212007L1
■
Dual mount housing,
P/N 1212008L1
Local Power Applications
■
Single mount housing, P/N 1212007L2
DEPLOYMENT GUIDELINES
■
All loops must be non-loaded.
■
Actual Measured Loss not to exceed 40 dB at 40 kHz, 135
Ω
termination, the Nyquist
frequency of IDSL.
■
Recommended bridged tap length should not exceed 2 kft.
■
For a complete Installation and Maintenance Practice faxback: (877) 457-5007, Document #574. Please have your fax number available.
■
Pair
Terminal Strip Designations
T400 PIN Number
Customer RJ-48
To/From Network
TT, TR
41, 47
–
To Customer
DRT, DRR
5, 15
7, 8
From Customer
DTR, DTT
49, 55
1, 2
Frame Ground
GND
11, 27
Local -48 Vdc
GND
17
Local -48 Vdc
PWR
35
Code
Input
Output
Power Code (PC)
F
C
Telecommunication Code (TC)
X
–
Installation code (IC)
A
–
CAUTION:
On span-powered units, ensure ground
continuity exists between the unit, the housing,
and a known approved ground source.
C A U T I O N
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
