Specifications

75
TELCO Connectors
Model 2200 Backplane TELCO Pinouts (702-9071 Rev C - J20)
1
“-” means no connection.
2
“Radio” means that the signal is used by radio card slots.
3
The signal names ending in “A” are used by the single trunk card 702-9037. The dual trunk card
702-9117 uses signals ending in “A” for trunk A and signals ending in “B” for trunk B. The single
trunk card 702-9037 has no connections to any signals ending in “B”. For example, Signal “RING
10A” is a telco Ring signal from a trunk card plugged into slot number 10. If that card is a dual
trunk, the Ring signal is for trunk A on the dual trunk.
4
Connector J20 serves trunk cards plugged into card slots 12 to 16. This means five telco lines if the
cards are single 702- 9037s, ten telco lines if the cards are dual 702-9117s or six to nine if using a
mixture of single and dual trunk cards.
5
The table shows the pins in numeric order, as they appear when looking directly at the connector.
When looking at them on a punch-down block, you need to flip the left and right halves of the table,
as the first pin on a punch-down block is pin 26, the second pin is 1, etc. Refer to the punch-down
block diagram on page 129.
J13
Pin
Card
Slot
Signal Name
Wire Color
Main/Stripe
J13
Pin
Card
Slot
Signal Name
Wire Color
Main/Stripe
1 12 RING 12A Blue/White 26 12 TIP 12A White/Blue
2 12 M 12A Orange/White 27 12 E 12A White/Orange
3 12 RING 12B Green/White 28 12 TIP 12B White/Green
4 12 M 12B Brown/White 29 12 E 12B White/Brown
5 13 RING 13A Slate/White 30 13 TIP 13A White/Slate
6 13 M 13A Blue/Red 31 13 E 13A Red/Blue
7 13 RING 13B Orange/Red 32 13 TIP 13B Red/Orange
8 13 M 13B Green/Red 33 13 E 13B Red/Green
9 14 RING 14A Brown/Red 34 14 TIP 14A Red/Brown
10 14 M 14A Slate/Red 35 14 E 14A Red/Slate
11 14 RING 14B Blue/Black 36 14 TIP 14B Black/Blue
12 14 M 14B Orange/Black 37 14 E 14B Black/Orange
13 15 RING 15A Green/Black 38 15 TIP 15A Black/Green
14 15 M 15A Brown/Black 39 15 E 15A Black/Brown
15 15 RING 15B Slate/Black 40 15 TIP 15B Black/Slate
16 15 M 15B Blue/Yellow 41 15 E 15B Yellow/Blue
17 16 RING 16A Orange/Yellow 42 16 TIP 16A Yellow/Orange
18 16 M 16A Green/Yellow 43 16 E 16A Yellow/Green
19 16 RING 16B Brown/Yellow 44 16 TIP 16B Yellow/Brown
20 16 M 16B Slate/Yellow 45 16 E 16B Yellow/Slate
21 13 Radio Blue/Violet 46 13 Radio Violet/Blue
22 13 Radio Orange/Violet 47 13 Radio Violet/Orange
23 14 Radio Green/Violet 48 14 Radio Violet/Green
24 14 Radio Brown/Violet 49 14 Radio Violet/Brown
25 Chassis GND Slate/Violet 50 Chassis GND Violet/Slate