This cable only has 28 pairs. There is a lower pair count than they may be used to working
with. Typically, on cables with less than 32 pairs, the first 25 never have a binder (it's really
not needed), and all pairs after 25 and up to 32 are in a binder (usually a blue binder)
For 50 pair cables, ALL pairs DO have a binder, but there are 2 blue binders and 2 orange
binders where the blue binders bind the first 25 pair (blue #1 has pairs 1-12, blue #2 has
pairs 13-25), and the orange binder binds the second set of 25 pairs (orange #1 = 2nd set
pairs 1-12, orange #2 = 2nd set pairs 13-25).
For cables with 100 pairs, ALL pairs are in binders. There are 4 binders, and each binder
binds a set of 25 pairs. The binders are color coded in this order:
Set 1 pairs 1-25 = Blue Binder
Set 2 pairs 1-25 = Orange Binder
Set 3 pairs 1-25 = Green Binder
Set 4 pairs 1-25 = Brown Binder
Can you remotely manage the MX2820 with a modem?
IP Forwarding functionality is now available in code D.01 for MUX and SCU.
What is the line length limitations for the T1 rated cable we use in our DS1 connector?
The metral cable is T1 rated cable...there are no line length limitations... Max distance is
655 feet. DS1 cables are 24 guage.
Are the blank Mux cards required?
To comply with NEBS fire test requirements in installations such as C.O., Huts, and Vaults
any vacant slot in the MX2820 needs to have a blank cover installed. It is not required at
the customer premises or RT's unless the safety guys make you have them.
What is the username and password to log in to the unit?
username: ADTRAN
password: PASSWORD
Do the M13’s behave as completely separate units and their Back Plane bandwidth is in no way
connected to each other?
Yes. Each M13 pair has an independent data path.
The power is a common feed? Are there separate fuses for each M13?
There are dual feeds on the shelf that should be independently fuse protected. The power
distribution in the shelf is protected by fuses on each card.
The Maintenance bus is common between each M13? If one unit fails will it take out the ability
to access the outers? How do you talk to each M13 is it a singe IP address or one for each unit?
The maintenance bus is common, but the system is designed to minimize the impact of
management traffic or failures. Management traffic access is shared among the mux pairs
such that none of the line cards can monopolize the bandwidth. If the SCU detects a card
that is unable to respond, then that card is skipped until it can respond (or is replaced).
Each shelf (containing up to 9 mux pairs for the 23" system) requires only a single
management IP address.
Can you use the patch panels with the MX2820?