Toshiba DK 16 manual 20 DK8 and DK16 Local Maintenance Terminal Installation

REMOTE ADMINISTRATION AND MAINTENANCE PROCEDURES SECTION 100-816-600

MARCH 1993

4.10Maintenance Terminal/External Modem Option System Hardware Requirements

4.11The STRATA DK8 must be equipped with a QSMU PCB and the DK16 with a PIOU or PIOUS PCB to support the maintenance terminal/external modem options. Connecting the maintenance ter- minal or external maintenance modem to the QSMU, PIOU, or PIOUS PCB is accomplished with a standard three-pair modular cord and a PPTC adaptor connected to the PCB TTY jack.

4.20DK8 and DK16 Local Maintenance Terminal Installation

4.21Install the ASCII terminal in accordance with the following steps (Figure 5):

1)Connect the three-pair modular cable (24 AWG twisted pairs) and the PPTC adaptor from the DK8 QSMU or DK16 PIOU or PIOUS TTY port to the remote maintenance terminal DB25 connector.

2)For the DK8 QSMU, set Program 10-3, LED 04 ON for TTY operation.

3)For the DK16, set the PIOU or PIOUS SW2 switch to match the modem or terminal baud rate as follows:

•Push in for 300 bps (baud rate indicator CD4 is lit); let out (by pushing again) for 1200 bps (CD4 is not lit).

NOTE:

The DK8 QSMU baud rate is always 1200 bps.

4)For DK16, set the PIOU or PIOUS SW3 switch to the TTY position.

NOTE:

The PIOU or PIOUS SW3 switch is set to MODEM position for IMDU operation only.

5)For DK16, set the P13 jumper plug on the PIOU to the BELL configuration, or cut the W4 jumper on the PIOUS (also for BELL configu- ration).

NOTE:

The P13 (PIOU) and W4 (PIOUS) CCITT configurations are not normally used in the USA.

6)For DK8 and DK16, set terminal communica- tion parameters to seven bits, even parity, one-stop bit (300, or 1200 bps. See step 3 above).

NOTE:

If a digital or electronic telephone is in the program mode, programming from the main- tenance terminal is not allowed.

4.30Remote Maintenance Option Installation

4.31DK16 IMDU Maintenance Modem (Figure 4). The IMDU mounts on the PIOU or PIOUS PCB and provides 300 or 1200 bps, full-duplex commu- nication for remote maintenance (seven bits, even parity, one-stop bit). If the IMDU is employed, a dedicated CO line or standard telephone port is not required. Connection of the remote maintenance terminal is through existing system CO lines via intercom number 619. Refer to the PIOU or PIOUS portion of Section 200-816-205 for hardware instal- lation and programming requirements.

4.32DK8 and DK16 External Maintenance Mo- dem Installation. Refer to Figure 2 or 3, as appli- cable, and install the external modem in accor- dance with the following steps:

NOTE:

The Toshiba PPTC RS-232 modular-to-DB25 adaptor is factory configured for ASCII termi- nal connection. Pins 2 and 3 and Pins 8 and 20 of the adaptor must be reversed for external modem connection (see Table RM-A).

1)Connect the modular cord from the DK8 QSMU or DK16 PIOU or PIOUS TTY port to the PPTC adaptor and then to the external maintenance modem RS-232 25-pin connector.

2)Connect the external maintenance modem line-side to a dedicated CO line (tip and ring) or to a dedicated standard telephone port, tip and ring (QSTU with DK8; KSTU, PSTU, or PESU with DK16). Refer to Wiring Diagrams, Section 200-816-208, for wiring/interconnect- ing details.

3)For DK16, set the PIOU or PIOUS SW2 switch to match the modem or terminal baud rate:

•Push in for 300 bps (baud rate indicator

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