1 Introduction
10
MT5600BR-V92 User Guide
PC Board Controls

The MT5600BR-V92 is designed on a single printed circuit board. This board contains sixteen DIP-

Switches. There is a two-position

"Out of Service"

(OOS) toggle switch that extends from the front of the

modem circuit card. There is also a two-position TEST/OOS berg jumper located towards the back and

center of the card.

TH2TH3FID1FID2FID3
31098415 1211762
S1
14
T3
C91
U22
S6
P7
1
LED4
367
U15
109
73
37
LED1
P1A20A1
S2
1413 15 16
C15
LED6
LED3
TH1
30
U8
21
14
5
LED5 LED7 LED8 LED10
T1
29
U2
40
18
7
JP7
R2
LED9
FID4
T5
LED2
U11

The sixteen DIP-Switches and berg jumper control various modem options or set default values for the

MT5600BR-V92 Command mode. There is a difference in how several of the switches operate depending

on whether you are in synchronous or asynchronous mode (DIP-Switch #12).

Most communications software packages have installation procedures of their own, which call for certain

modem DIP-Switch settings. If you are using such a package, follow the software's instructions.

DIP-Switch Settings

The vast majority of installations are similar, with the MT5600BR-V92 being used to dial up a remote

installation where the call is automatically answered. The factory default DIP-Switch settings are based

on this assumption. The following is a brief description and summary of the MT5600BR-V92's DIP-Switch

options:

Switch Function Position Effect
#1 DTR Forced/ UP* DTR dependent on interface
DTR from Interface * DOWN DTR forced ON at all times
#2 Flow Control &E4* UP* Hardware flow control
(Async/Dial-Up/Leased Line) DOWN Software flow control
#2 SDLC*/BSC (Sync) UP* SDLC mode
DOWN BSC mode
#3 Result Codes Enabled* UP Q1 Disable Responses
(Async Dial-up) DOWN* Q0 Enable Responses
#3 DbM Transmit -15dB/-11dB* UP Lease Line
(Async/Sync/Leased Line) DOWN* transmits at -11dB
#4 No affect in async
#4 AS/400 Mode Disabled* UP* AS/400 Mode OFF
(Sync Dial-Up/Leased Line) DOWN AS/400 Mode ON
#5 Auto-Answer Enabled* UP* Enable Auto Answer
(Async/Sync/Dial-Up) DOWN Disable Auto Answer
*Factory default setting.