Table of Contents
Advertisement
PDIU-DS Modem Pool Installation
PPCT (Modular to DB25) Adaptor, Modified Wiring for Connecting TTY Jack to
an External Modem (only if null-modem adaptor is not used with PPTC):
PIOU/PIOUS, TTY Jack
Modular Pin Number
1
2
3
4
5
6
0926
Important!
Figure 24
External Modem to Strata DK TTY Port Connection
144
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
PPTC1A-5M Adaptor
Modular Pin No.
to
RD
RD,
to
TD
TD,
to
DSR
DSR,
to
DTR
DTR,
to
DCD
DCD,
to
SG
SG,
* PPTC1A-5M, pins 2 & 3 and pins 8 & 20 must be reversed in the field, as
shown, for modem connection. Set Hayes modem to track status of carrier
detect signal (AT and C1) and to answer (ATS0 = 1).
DB25 Pin No.
6 to
2*
5 to
3*
4 to
6
3 to
8*
2 to
20*
1 to
7
4 Jumper to 5
Modem
RS-232
Lead Name
TD
RD
DSR
DCD
DTR
SG
RTS to CTS
DKAdmin/DKBackup
Advertisement
Table of Contents
