Specifications

Chapter 5: Installation
Built-In Ports for WAN Fail Survivability
Mitel
®
5000 Installation Manual – Issue 3.0, October 2008 Page 5-27
Built-In Ports for WAN Fail Survivability
Two loop start ports and two single line ports are built-in to the Mitel CS-5200/5400/5600 Base
Server to provide Wide Area Network (WAN) Fail Survivability through Power Fail Bypass
circuitry. When not in WAN Fail Survivability mode, the ports support CO loop start trunks and
single line endpoints in the system configuration.
The WAN Fail Survivability feature allows calls to be made from one or two single line endpoints
through the CO [branch exchange] during a network outage. A customer can dial out and
receive calls at any time through these connections. But, the single line endpoints and loop start
trunks connected to the built-in ports continue to operate during a network outage. For more
information about WAN Fail Survivability, see the Product Description chapter.
Two RJ-14 jacks on the back of the Mitel CS-5200/5400/5600 Base Server provide interfaces
for the Dual Loop Start Ports and Dual Single Line Ports that make up the WAN Fail
Survivability feature. See Figure 5-7.
Figure 5-7. Built-In Dual Loop Start and Dual Single Line Ports
For this procedure, see Figures 5-8 and 5-9 on page 5-28 as a guide.
To connect the built-in dual loop start CO trunks and dual single line port:
1. Run the necessary amount of cable and install the endpoint you want to use (single line
set) should power fail to the system.
2. Cable the single line and loop start ports.
• Two 2-pair cables are required: one for the dual single line port and one for the
dual loop start port.
• Use a patch panel at the rack and adapters between the patch panel and the Mitel
CS-5200/5400/5600 Base Server chassis. Use the fewest modular jacks and
adapters as possible, and do not attach any adapters to the back of the chassis;
clearance issues prevent them from attaching securely. If using a 6-pin, 6-
conductor patch panel, make the appropriate adjustments when using the
adapters. You can also build your own 6P/6C to 8P/8C patch cables, if necessary.
• If using 4- or 6-conductor modular line cord, limit the length to 6 ft maximum. In
general, modular line cords are not twisted pair and could introduce crosstalk
between line 1 and line 2 at longer lengths.
In Figure 5-8 on page 5-28, the split to achieve two loop start and two single line
ports occurs at the patch panel. This is the recommended option. In Figure 5-9 on
page 5-28, the split to achieve two loop start and two single line ports occurs at the
MDF using modular jacks.
NOTICE
Equipment Damage: Use adapters when connecting any 6-pin plug to an 8-pin
jack. Although a 6-pin plug will fit into an 8-pin jack, the plastic on the 6-pin plug
housing will damage pins 1 and 8 on the 8-pin jack. Not using adapters will
increase the likelihood of failure (to pins 1 and 8 in the 8-pin jack) should that
jack need to be used with an 8-pin plug in the future. Various adapter types are
available based on how you choose to connect to the patch panel.
Dual Loop Start Port
Back of Mitel 5000 Base Server
Dual Single Line Port (to single line endpoints)
DUAL LS
DUAL SL
EXP
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