Mike's PBX Cookbook

CS1K Serial TTY cables

Cisco Console cable adapter pinouts for CS1K applications.

Instead of requiring (and therefore carrying) several different dedicated CS1K TTY cables, a good solution is to use a standard Cisco Terminal/Console cable with a few special adapters.

Find a nice blue Cisco Console cable (like the one on the left), and build the following RJ45 to D-type shrouds (like the ones on the right) to cover all your CS1k TTY cable needs.

Cisco Console cable

RJ45 to D-type shrouds

Pin the D-Type shrouds as follows, one for each application, or circuit card type:

CPPM Call Server & Sig Server,
25 pin male D-type

PinColour
2Yelow
3Black
4White
5Blue
7Green/Red
20Brown

ISP 1100 & COTS Signaling Servers,
9 pin male D-type

PinColour
2Yelow
3Black
4Orange
5Green/Red
6Brown
7Blue
8White

MGC Serial Port (Chassis rear),
9 pin female D-type

PinColour
1Blue/White
2Yellow
3Black
4Orange
5Red
6Brown

Media Cards,
9 pin male D-type

PinColour
1Orange
2Black
3Yellow
4Brown
5Green
7Blue
8White

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