Norstar E&M Trunks
The following notes apply to interfacing a Norstar with a Motorola Vanguard 320 VoIP Gateway, but may be adapted for other E&M (tie trunk) applications.
In general
- Norstar E&M ports are TYPE 2 - this cannot be changed!
- 4 signal pairs are required (additionally, Signal Ground, and Battery are needed).
Norstar Programming
Hardware - TrunkMod allows you to configure the Trunk Cartridges in the Trunk Module. Press CHANGE to select the E&M setting.
Note: You cannot change this setting unless you first disable the Trunk Cartridge using Module Status in Maintenance. Trunk Cartridge slots in the module are numbered from left to right. Remember to enable the Trunk Cartridge when you have completed programming!
Testing:
- Idle: E lead = -48v / M lead = 0v
- Seized: E lead = 0v / M lead = -48v
Verify far-end circuits by activating near-end M lead and listening for far-end dial tone.
Verify near-end circuits by activating near-end E lead and listening for near-end dial tone.
Vanguard RJ-45 Wiring
Connect the Norstar E&M trunks to the Vanguards RJ-45 connector:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| SG | E | R1 | T1 | R | T | M | SB |
Trunk Module E&M wiring chart
It is recommended, to retain emergency telephone function, to install a Loop Start Trunk Cartridge in Slot 1 of the Trunk Module. E&M cards are only TWO circuit!
| Pin | Color | Wire color | Port | Service | Line |
|---|---|---|---|---|---|
| 26 1 |  |
White-Blue Blue-White |
X01 | T R |
1 |
| 27 2 |  |
White-Orange Orange-White |
X01 | T1 R1 |
|
| 28 3 |  |
White-Green Green-White |
X01 | E SG |
|
| 29 4 |  |
White-Brown Brown-White |
X01 | M SB |
|
| 30 5 |  |
White-Slate Slate-White |
X02 | T R |
2 |
| 31 6 |  |
Red-Blue Blue-Red |
X02 | T1 R1 |
|
| 32 7 |  |
Red-Orange Orange-Red |
X02 | E SG |
|
| 33 8 |  |
Red-Green Green-Red |
X02 | M SB |
|
| 34 9 |  |
Red-Brown Brown-Red |
X05 | T R |
5 |
| 35 10 |  |
Red-Slate Slate-Red |
X05 | T1 R1 |
|
| 36 11 |  |
Black-Blue Blue-Black |
X05 | E SG |
|
| 37 12 |  |
Black-Orange Orange-Black |
X05 | M SB |
|
| 38 13 |  |
Black-Green Green-Black |
X06 | T R |
6 |
| 39 14 |  |
Black-Brown Brown-Black |
X06 | T1 R1 |
|
| 40 15 |  |
Black-Slate Slate-Black |
X06 | E SG |
|
| 41 16 |  |
Yellow-Blue Blue-Yellow |
X06 | M SB |
|
| 42 17 |  |
Yellow-Orange Orange-Yellow |
X09 | T R |
9 |
| 43 18 |  |
Yellow-Green Green-Yellow |
X09 | T1 R1 |
|
| 44 19 |  |
Yellow-Brown Brown-Yellow |
X09 | E SG |
|
| 45 20 |  |
Yellow-Slate Slate-Yellow |
X09 | M SB |
|
| 46 21 |  |
Violet-Blue Blue-Violet |
X10 | T R |
10 |
| 47 22 |  |
Violet-Orange Orange-Violet |
X10 | T1 R1 |
|
| 48 23 |  |
Violet-Green Green-Violet |
X10 | E SG |
|
| 49 24 |  |
Violet-Brown Brown-Violet |
X10 | M SB |
|
| 50 25 |  |
Violet-Slate Slate-Violet |
---- | ---- | N/C |