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4-38 Peripheral devices
Figure 4-11
Develcon DS 511A limited distance modem hardware configuration
NAC
Multiport
I/O cable
553-4011-110 Standard 1.0 November 1994
Cable
NT7D99AA
Male DB–25
Female DB–25
DCE
Develcon DS 511A
R1
R2
S1
S2
Twisted Pairs
Gandalf LDS 120E modem settings
The following settings are necessary for the Gandalf LDS 120E modem to
be used:
Termination: T (330 OHM)
Internal Jumper Plugs: 4
connected
Front Panel Push-button Switches: ALL OUT - TP - RL - DL - AL
Table 4-12 lists the external DIP switch settings for point-to-point,
full-duplex for the Gandalf LDS 120E. Table 4-13 lists the internal DIP
switch settings for point-to-point, full-duplex.
Male DB–25
Female DB–25
Develcon DS 511A
R2
wire mode, J13-J14 connected and J15-J16
-
Cable
Peripheral
NT7D99AA
or
NT1R03Dx
or
NT1R03Ex
DCE
R1
S2
S1
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