User's Manual

MDR2400-SR, MDR5800-SR and Orion 5825-SR
Issue 10 Page 127
Figure 14:
Tributary channel interface cable used to connect Protection Kit Paths A & B
to the two Indoor Units.
IU-IU auxiliary communications cables are supplied with the Protection Kit and are
used to connect the auxiliary ports of the two indoor units according to Table 14.
The
system diagram when using the two radio pairs in bridging mode is shown in Figure
10.
Table 14:
Auxiliary Port cross connection.
Radio Software Configuration
Two MIB elements are used to configure the radios taking part in the protected radio
link. These MIB elements can be set using any SNMP element manager application,
or through the Orion NMS application. Please refer to the following user manuals for
details on using the above applications:
• MDR / Orion – SR user manual
• Orion NMS HTML user manual
• 3
rd
party user manual (If a 3
rd
party SNMP element manager / MIB browser is
used.
Set the following MIB element in all IDUs taking part in the protected radio link to 1
(Yes). mdrmteOnePlusOne (OID: 1.3.6.1.4.1.1316.1.1.1.2.4.17, Parent:
mdrmteGeneral)
The MIB element controlling the switch-over threshold, mdrmteSevereErrorMargin
(OID: 1.3.6.1.4.1.1316.1.1.1.2.2.18, Parent: mdrmteRFLinkConf), is set to 30% by
default. This value is a percentage and represents the switch-over threshold for the
Packet Error Ratio (PER). When the PER exceeds 30%, the switch-over will occur.
The value of this MIB element can be adjusted to meet the exact user requirements. It
is advisable to set the switch-over threshold on all Indoor Units to the same value.
Radio 1A Pin No Radio 1B Pin No
1 12
2 13
8 14
9 15
12 1
13 2
14 8
15 9