ATL Telecom AM2048 - Manual (Page 39)

ascom
telecom USER GUIDE AM768A/AM2048A
39
Issue 8
6.3 X.21 Plug In Module MK II
The X.21 module may be configured as a DCE or DTE.
The 120 termination is always in.
In DCE mode, the module may be configured to generate Byte Timing (B) or receive the DTE clock
(X).
In DTE mode, the module may be configured to receive Byte Timing (B) or generate a DTE clock (X).
6.4 V.35 Plug In module (MK I and MK II)
The V.35 module may be configured as a DCE or DTE. Both links must be in the correct position. If
the links are incorrectly set, the unit will detect the illegal setting.
DCE DCE DTE DTE
DCE DTE
X
B