Installation Instruction

Ref : SCT TMO MOD SPEC 662

Rev.: B

Ref. sec. :

Date:

18/11/2004

Document

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MO2XX module – Confidential under NDA

Page 32/67

6.7 V24 (UART 1)

TXD,RXD,CTS, RTS, DCD, DSR, DTR and RI have the following characteristics:

(V) V

(V)

Remarks

State after resetSignal

Min Max Min Max

RTS -0.5 +0.8 +2.03 +3.2

PU 100K

RI - +0.59 +2.32 -

CTS - +0.59 +2.32 -

DSR - +0.59 +2.32 - PD

DCD - +0.59 +2.32 - PU 10K

DTR -0.5 +0.8 +2.03 +3.2

PU 100K

TXD1 - +0.59 +2.32 -

RXD1 -0.5 +0.8 +2.03 +3.2 PU 10K

6.8 UART2

TXD2 and RXD2 have the following characteristics:

VL (V) VH (V)Signal

Min Max Min Max

Remarks

State after RESET

RXD2 -0.5 +0.8 +2.03 +3.2 PU 100K

TXD2 - +0.59 +2.32 -

6.9 DATA / COMMAND MULTIPLEXING

MOD_ESCAPE*_CMD and DTE_ESCAPE*_CMD have the following characteristics:

(V) V

(V) Remarks State after resetSignal

Min Max Min Max

MOD_ESCAPE*_CMD

-0.5 +0.8 +2.03 +3.2 ESD

protection

DTE_ESCAPE_CMD - +0.59 +2.32 - ESD

protection