Mike's PBX Cookbook

MG XPEC TTY Ports

Within the MG XPEC cable kit (NTDW25AAE6), two cables (NTDW26ABE6) are provided - blue cables in the pictures below. These cables are used to connect the MG XPEC TTY ports (from SL1 and SL3) to RJ45 couplers in the I/O panel. From these couplers, make a connection to a PC/Mac running terminal software using a standard network cable and one of the adapters provided, eg: RJ45 to DB9. MG XPEC's are not compatible with Rel. 5.5.

Two kinds of RJ45 adapters are included in the cable kit: mgxpec.png

The default TTY settings are: 9600, 8 none 1 - see Using PuTTY for Serial.

Serial Data Pin Descriptions:

RJ-45
Pin #
MG XPEC
Signal
DB-25
Pin #
DB-9
Pin #
Description
1nc66Data Set Ready (in)
2DCD81Data Carrier Detect (in)
312V204Data Terminal Ready (out)
4GND75Ground
5RXD32Receive Data (in)
6TXD23Transmitted Data (out)
7nc58Clear To Send (in)
812V47Request To Send (out)

Adapter pinouts:

N0211605 DB9 Null Modem adapter
RJ45 to RJ45 adapter for MRV

Connecting the cables:

Connect a NTDW26ABE6 cable between the IPE shelf rear SL1 / SL3 connectors and I/O panel RJ45 couplers, observing the correct connector orientation: make sure UP! is up! Do not touch any pins on the IPE back plane, they will zap you if the shelf is powered up!

Each cable provides access to TTY 0 and TTY1 for half of the MGXpec. As you look from behind, the right side is the even: shelf 0 (SL1) and the left side is the odd: shelf 1 (SL3). Both MGXPec halves are independant, and must be individually configured. If you can only find one cable, carefully move it as required to configure the card sides. For configuration see MGC Card Settings and mgcsetup. An MGX has a fixed DB96 DSP daughterboard (each half). mgxpetty.png

Click on a picture below to open large view
mgxtty1.jpg
mgxtty2.jpg
mgxtty3.jpg
mgxtty4.jpg
mgxtty5.jpg

Difference between NTDW26AAE6 and NTDW26ABE6:

RJ-45
Pin #
NTDW26ABE6
Signal
NTDW26AAE6
Signal
1nc12V
2DCDDCD
312VRXD
4GNDGND
5RXDGND
6TXDTXD
7nc12V
812Vnc
Use a NTDW26ABE6 cable with a RJ45 to DB9 (DTE) adapter,
supplied with the MG XPEC cable kit and MG1010 cabinet,
for local TTY port access from a terminal or PC/Mac. rj45-db9.png

Add MG XPEC TTY ports to CS1000:

You can add MG XPEC TTY port(s) to the CS1000 and assign a function such as maintenance (sch mtc bug) or CDR (cty).

> ld 17
REQ chg
TYPE adan
ADAN chg tty xx                   xx = new XSM port 
CTYP mgx
IPMG sl s                         sl = super loop, s = shelf 
PORT x                            x = tty port 0 or 1 on MGXPEC 
DES xxx                           xxx = designator
BPS
BITL
STOP
PARY
FLOW
USER xxx                          xxx = sch mtc bug, or cty
TTYLOG
BANR

MEM AVAIL: (U/P): 94556775 USED U P: 9063402 32172 TOT: 103652349
DISK SPACE NEEDED: 32 KBYTES.............

Print ADAN in LD 22, STAT TTY in LD 37.

Add XSM port to CS1000, if required:

Optional step, skip if an Extended System Monitor port is not required.

A third TTY port is available for the system monitor. It requires an NTDW26BAE6 XSM cable, connected to the SL0 connector.

> ld 17
REQ chg
TYPE adan
ADAN chg tty xx                   xx = new XSM port
CTYP xsm
IPMG sl s                         sl = super loop, s = shelf
DNUM xx                           xx = device number
DES XSM