Figure 2. WMC Backplane Connectors
Apply Power and Check Voltage
WARNING: Installing fuses in the fuse and alarm panel or connecting the power supply to an AC
source at this stage provides power to the shelf, the pins on the backplane, and inside
the shelf. Exercise caution to avoid electric shock.
1. Without an OCM installed in the WMC, install 1A fuses in the fuse and alarm panel slots servicing
the OPTI-3 WMC shelf. (If using the AC Power Supply, plug the power supply into an AC outlet.)
2. Using a voltmeter, place the common (normally black) lead on the A
DC volts (normally red) lead on the
–48VA
range of –42 VDC to –56 VDC, with a nominal value of –48 VDC.
3. If redundant power is supplied, repeat step 2 for the B
4. Remove the fuses from the fuse and alarm panel serving the WMC until power is required.
ADDITIONAL CONNECTIONS
Connect External BITS Clock
If an external BITS clock is to be used, perform the following steps:
1. Determine the +, – and ground wires from the primary CO clock source.
2. Locate the external clock input wire-wrap pins on the backplane of the WMC. There are two sets of
pins labeled
EXT CLK PRI
and
EXT CLK SEC
3. Wire-wrap the + wire from the clock source to the pin marked
4. Wire-wrap the – wire from the clock source to the pin marked
5. Wire-wrap the ground wire from the clock source to the pin marked with
symbol.
6. Tie the clock source wires neatly to the frame.
7. If a secondary BITS clock source is to be supplied, repeat steps 1 through 6 for
Warranty: ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifications or fails while in service.
Warranty information can be found online at www.adtran.com/warranty.
OPTI-3 Wallmount Chassis (WMC)
power terminal and the
RET
power terminal. The reading should be in the operating
and
.
RET
–48VB
.
+.
PRI
–.
PRI
PRI
and the ground
SEC
Connect DS3 Interface Cabling
Connect the DS3 interface cable to the proper BNC connectors on the rear of the chassis. Each of the
three pairs of BNC connectors are labeled
the BNC connectors) corresponding to which DS3 the connector is mapped.
from the previous network element (NE), and
Connect Alarm Inputs
There are three auxiliary alarm inputs provided by the OPTI-3 WMC using wire wrap pins, labeled
AUX 1
,
AUX 2
, and
AUX 3
NOTE: These inputs only operate when the OCM is installed.
Any on-site equipment that might need to pass an alarm through the network can use these contacts.
The priority of these contacts can be set to Critical, Major, Minor, or None using the OCM menus. An
alarm is triggered when any pair of wire-wrap pins is shorted.
Connect to LAN
The OPTI-3 WMC provides an RJ-45 connection for network management over Ethernet, located on
the backplane and labeled
NOTE: The Ethernet Interface is only intended to be connected to intra-building wiring.
Optical Connections
All OC-3 connections are made using the connection points on the OCM. For more information
concerning installing the OCM and making the optical connections, see the OPTI-3 Controller Module
Installation and Maintenance Practice (P/N 61184002L5-5) or Job Aid (P/N 61184002L5-22).
COMPLIANCE
Per GR-1089-CORE October 2002, Section 9, this system is designed and intended only for
installation in a DC-C (common) Bonding and Grounding system. It is not intended or designed for
installation in a DC-I (isolated) Bonding and Grounding system.
The OPTI-3 Wallmount Chassis complies with NEBS Level 3 requirements. The WMC also complies
with the requirements covered under UL 60950, and is intended for installation in restricted access
locations only. The WMC must be installed in accordance with the requirements of NEC NFPA 70.
With one OCM installed, the WMC has a power draw of 9 W. With two OCMs installed, the WMC has
a power draw of 16 W. The following table provides the compliance codes for the OPTI-3 WMC.
Code
Power Code (PC)
Telecommunications Code (TC)
Installation Code
.
PRICING AND AVAILABILITY 800.827.0807
TECH SUPPORT 800.726.8663
RETURN FOR REPAIR 256.963.8722
(top) and
(bottom) along with the number (between
IN
OUT
transmits DS3 signal to the next NE.
OUT
ETHERNET
.
Input
Output
F
C
–
–
E
–
www.adtran.com
61184001L1-22C
IN
receives the DS3 signal
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