
Preparing for Installation
114948-A Rev. A 1-9
Table 1-2. Dual Sync/Single Ethernet Jumper Settings
Option Setting Jumper
Interface voltage ±5 or ±12 ±12 for RS-232, V.28, V.35
±5 for RS-423*
Com 1 Unbalanced signal for
RS-232, RS-423, V.28†
Balanced signal for X.21*
Balanced signal for RS-422*
Com 2 Unbalanced signal for
RS-232, RS-423, V.28†
Balanced signal for X.21*
Balanced signal for RS-422*
(continued)
S7
S8
S7
S8
S11
A
S10
S10
S10
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