
Chapter 3. Configuration
61185001L1-1 MX2810 M13 User Manual 3-5
Protection Configuration
The MX2810 houses two controller cards for 1:1 protection against
hardware failure. The selections in this menu allow you to
customize the unit’s protection setup:
Active Controller
This field displays A or B, indicating the active controller card. This
setting can be used to force the controller cards to switch. For
example, if controller card A is active and you select B, a switch-
over occurs immediately.
Max. Switch Threshold
The value entered in this field determines the number of times per
hour the unit is allowed to switch between controller cards. If, in an
hour, the cards switch more than the M
AX
S
WITCH
T
HRESHOLD
, the
unit issues a trap (see page 3-16) and stops switching cards for the
next 24 hours. The default setting is 3 times an hour. This count
may be cleared by clearing P
ROTECTION
S
WITCH
alarm counts (see
page 5-12).
Min. Switching Period
After the unit switches controller cards, the number of seconds
entered in this field must pass before another card switch will be
allowed. The default setting is 10 seconds.
Miscellaneous
Loopback Timeout
Sets the loopback timeout to D
ISABLED
, 1
MIN
., 5
MIN
., 10
MIN
.,
15
MIN
., 30
MIN
., 45
MIN
. or 1
HR
.
DS2 Configuration
The MX2810 can individually frame each of the seven DS2 streams
in M12 (four T1s) or G.747 (three E1s) format. When set to M12
(4
X
T1), the four T1s for the selected group are framed per ANSI
T1.107. When set to G.747 (3
X
E1), the first three T1/E1 ports of the
selected group are framed per CCITT G.747 into the DS3 stream.
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